Exam 3 Extra Credit Questions (Dynamic Study Modules)

What formula represents the compound formed from ammonium and phosphate ions?

(NH4)3PO4

What formula represents the peroxide ion?

(O2)2-

How many chromium ions are in the compound chromium(II) nitrate?

1 In chromium(II) nitrate, there is one chromium ion in the formula. Chromium has a 2+ charge and nitrate has a 1- charge, so one chromium ion and two nitrate ions are in the formula to create a balance between the charges of the cation and the anion.

What is the charge on the silver ion in AgMnO4?

1+ The charge on the silver ion in AgMnO4 is 1+ because it has only one possible charge, 1+. The permanganate ion, MnO4¯, has a 1- charge, so a compound with a 1:1 ratio will have the same magnitude of charge on both ions. The cation is written first in the formula and in the name.

How many chloride ions will be found in the formula for cobalt(II) chloride?

2

What is the charge on the copper ion in the compound CuF2?

2+

What is the charge on the cobalt ion in CoBr2?

2+ The cobalt in CoBr2 has a charge of 2+. Cobalt is a transition metal, so it forms a cation with a positive charge. The bromide ion has a 1- charge, so if two are needed to balance the charge of the cobalt, then cobalt must have a 2+ charge.

What are the charges on the copper and phosphide ions, respectively, in copper(II) phosphide?

2+, 3- In copper(II) phosphide, the copper ion has a 2+ charge and the phosphide ion has a 3- charge. The cation is listed first in the name for the compound so the copper must have a positive charge. The roman numeral listed after copper indicates that the copper will have a 2+ charge. Phosphide written second, indicating that it is the anion, has a 3- charge

Mass percent composition involves calculating the percentage of mass, for each of the individual elements, in a given substance. Mass percent composition is calculated according to the following equation: The percentages for each of the individual elements will then add up to 100%. What is the mass percent composition of phosphorus in aluminum phosphate, AlPO4?

25.40% The mass percent composition of phosphorus in AlPO4 is 25.40%. The mass percent composition of phosphorus would be calculated as follows:

Mass percent composition involves calculating the percentage of mass, for each of the individual elements, in a given substance. Mass percent composition is calculated according to the following equation: The percentages for each of the individual elements will then add up to 100%. What is the mass percent composition of calcium in calcium sulfate, CaSO4?

29.44% The mass percent composition of calcium in CaSO4 is 29.44%. The mass percent composition of calcium would be calculated as follows:

What is the charge on the iron ion in Fe2S3?

3+

Mass percent composition involves calculating the percentage of mass, for each of the individual elements, in a given substance. Mass percent composition is calculated according to the following equation: The percentages for each of the individual elements will then add up to 100%. What is the mass percent composition of C in Vitamin B-6, C8H11NO3?

56.78% The mass percent composition of carbon in C8H11NO3 is 56.78%. The mass percent composition of carbon would be calculated as follows:

What is the name for the polyatomic ion C2H3O2?

Acetate

What is the name for the polyatomic ion C2H3O2—?

Acetate

What formula represents the compound formed from aluminum and hydroxide?

Al(OH)3

What is the name for NH4+?

Ammonium

What formula represents the compound formed from barium and hypochlorite?

Ba(ClO)2

What is the name for the compound with the formula BaSO4?

Barium sulfate

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. The molecular formula is a whole number multiple of the empirical formula. The multiple is determined from the ratio of the molar mass to the empirical formula mass. What is the molecular formula if the molar mass is 234.0 g/mole and the empirical formula is C5O2NH11?

C10O4N2H22 C10O4N2H22 is the molecular formula for a substance with a molar mass of 234.0 g/mole and an empirical formula of C5O2NH11. In order to determine the molecular formula, the whole-number multiple must be determined. The molar mass was given in the problem, so the empirical formula mass must be calculated from the empirical formula in order to complete the calculation. The empirical formula mass is 117.17 g/1 mole for C5O2NH11. The subscripts in the empirical formula are then multiplied by the whole number multiple: C5O2NH11 X 2 = C10O4N2H22

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. The molecular formula is a whole number multiple of the empirical formula. The multiple is determined from the ratio of the molar mass to the empirical formula mass. What is the molecular formula if the molar mass is 350.75 g/mole and the empirical formula is CH2?

C25H50 C25H50 is the molecular formula for a substance with a molar mass of 350.75 g/mole and an empirical formula of CH2. In order to determine the molecular formula, the whole-number multiple must be determined. The molar mass was given in the problem, so the empirical formula mass must be calculated from the empirical formula in order to complete the calculation. The empirical formula mass is 14.03 g/1 mole for CH2. The subscripts in the empirical formula are then multiplied by the whole number multiple: CH2 X 25 = C25H50

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. The molecular formula is a whole number multiple of the empirical formula. The multiple is determined from the ratio of the molar mass to the empirical formula mass. What is the molecular formula if the molar mass is 30.08 g/mole and the empirical formula is CH3?

C2H6 C2H6 is the molecular formula for a substance with a molar mass of 30.08 g/mole and an empirical formula of CH3. In order to determine the molecular formula, the whole-number multiple must be determined. The molar mass was given in the problem, so the empirical formula mass must be calculated from the empirical formula in order to complete the calculation. The empirical formula mass is 15.04 g/1 mole for CH3. The subscripts in the empirical formula are then multiplied by the whole number multiple: CH3 X 2 = C2H6

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 40.00% carbon, 6.714% hydrogen, and 53.29% oxygen by mass?

CH2O CH2O is the empirical formula for a substance containing 40.00% carbon, 6.714% hydrogen, and 53.29% oxygen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 40.00 grams of carbon, 6.714 g of hydrogen, and 53.29 grams of oxygen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. This results in an empirical formula of CH2O.

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance containing 37.5 grams of carbon, C, 12.5 grams of hydrogen, H, and 50.0 grams of oxygen, O?

CH4O CH4O is the empirical formula for a substance containing 37.5 grams of C, 12.5 grams of H, and 50.0 grams of O. The empirical formula would be calculated as follows: Determine the number of grams of each element. This information was already provided in the problem. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Since carbon and oxygen have the same smallest ratio of moles, either element can be used to divide the moles of the elements. This results in an empirical formula of CH4O.

What formula represents the compound formed from calcium and dihydrogen phosphate

Ca(H2PO4)2

Which one of the pairs correctly matches the ion's name with its formula?

Carbonate, CO32-

What is the name for the ion with the formula ClO2—?

Chlorite

What is the formula for cobalt(III) chlorate?

Co(ClO3)3

What is the name for the compound with the formula CoP?

Cobalt(III)Phosphide

What is the formula for chromium(III)hydroxide?

Cr(OH)2

Which one of the following correctly pairs a formula with its name?

Cr(OH)3, chromium(III) hydroxide Cr(OH)3 is the formula for chromium(III) hydroxide. AgOH is silver hydroxide. Silver has only one possible charge, 1+, so a roman numeral should not be included in the name. Lead(II) hydroxide has the formula Pb(OH)2 because hydroxide is a polyatomic ion and acts as a group. Fe(OH)3 would be named iron(III) hydroxide. Iron has two possible charges, 2+ and 3+, so a roman numeral must be included in the name.

What is the formula for chromium(III) sulfide?

Cr2S3 The formula for chromium(III) sulfide is Cr2S3. Chromium has a 3+ charge as indicated by the roman numeral in the name. Sulfide anions have a 2- charge. To balance the charges between the cations and anions, two chromium ions and three sulfide ions are needed. Cr3S2 and CrS do not have the correct number of cations and anions to balance the charges between the ions. The formula for chromium(III) sulfite is Cr2(SO3)3.

What is the formula for Copper(I) nitride?

Cu3N

What is the formula for copper(I) nitride?

Cu3N

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance containing 47.3 grams of copper, Cu, and 52.7 grams of chlorine, Cl?

CuCl2

Which ion can correctly complete the formula Al2(__________)3?

Dichromate

What is the formula for the compound iron(III) sulfite

Fe2(SO3)3 The formula for iron(III) sulfite is Fe2(SO3)3. As indicated by the roman numeral, iron has a charge of 3+. Sulfite has a 2- charge, requiring three sulfite ions and two iron ions to create a balance of charges between the cation and anions. Iron(III) sulfite has the formula Fe2(SO3)3.

What is the formula for the compound iron(II) phosphite?

Fe3(PO3)2 Iron(II) phosphite has the formula Fe3(PO3)2. The roman numeral in the name indicates that the iron has a 2+ charge. Phosphite has a 3- charge (PO33-). Three iron cations and two phosphite ions in the compound balance the charges between the cation and anion. PO43- is the phosphate ion, and when combined with Fe2+, would form the compound Fe3(PO4)2, which is named iron(II) phosphate. FePO4 and FePO3 are iron(III) phosphate and iron(III) phosphite.

Mass percent composition involves calculating the percentage of mass, for each of the individual elements, in a given substance. Mass percent composition is calculated according to the following equation: The percentages for each of the individual elements will then add up to 100%. Which element has a mass percent composition of 13.13% in ethanol, C2H6O?

H

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. The molecular formula is a whole number multiple of the empirical formula. The multiple is determined from the ratio of the molar mass to the empirical formula mass. What is the molecular formula if the molar mass is 34.02 g/mole and the empirical formula is HO?

H2O2 H2O2 is the molecular formula for a substance with a molar mass of 34.02 g/mole and an empirical formula of HO. In order to determine the molecular formula, the whole-number multiple must be determined. The molar mass was given in the problem, so the empirical formula mass must be calculated from the empirical formula in order to complete the calculation. The empirical formula mass is 17.01 g/1 mole for HO. The subscripts in the empirical formula are then multiplied by the whole number multiple: HO X 2 = H2O2

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 3.086% hydrogen, 31.61% phosphorus, and 65.31% oxygen by mass?

H3PO4 H3PO4 is the empirical formula for a substance containing 3.086% hydrogen, 31.61% phosphorus, and 65.31% oxygen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 3.086 grams of hydrogen, 31.61 grams of phosphorus, and 65.31 grams of oxygen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. This results in an empirical formula of H3PO4.

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 3.730% hydrogen, 44.44% carbon, and 51.83% nitrogen by mass?

HCN HCN is the empirical formula for a substance containing 3.730% hydrogen, 44.44% carbon, and 51.83% nitrogen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 3.730 grams of hydrogen, 44.44 g of carbon, and 51.83 grams of nitrogen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. This results in an empirical formula of HCN.

Identify the formula for the hydrogen carbonate ion.

HCO3—

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 1.003% hydrogen, 35.29% chlorine, and 63.71% oxygen by mass?

HClO4 HClO4 is the empirical formula for a substance containing 1.003% hydrogen, 35.29% chlorine, and 63.71% oxygen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 1.003 grams of hydrogen, 35.29 grams of chlorine, and 63.71 grams of oxygen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. This results in an empirical formula of HClO4.

Identify the bisulfite ion.

HSO3—

What is the formula for mercury(I) chloride?

Hg2Cl2 The formula for mercury(I) chloride is Hg2Cl2. Unlike other transition metals, the 1+ cation of mercury has the formula Hg22+ and behaves like a polyatomic ion. While HgCl has the correct ratio of cations and anions, it does not accurately represent the structure for the compound. Hg2Cl and HgCl2 do not have a balance of charges between the cation and anion.

What is the formula for Mercury(II)nitride?

Hg3N2 The formula for mercury(II) nitride is Hg3N2. Mercury has a 2+ charge, as indicated by the roman numeral, and nitride has a 3- charge. Three mercury ions and two nitride ions are needed to balance the charges between the cation and anion. Hg(NO3)2 is mercury(II) nitrate. Neither Hg2N nor HgNO3 have the correct ratio of ions to balance the charges between the cation and anion.

What is the name for the compound with the formula FeO?

Iron(II) oxide Iron(II) oxide is the name for the compound with the formula FeO. Since iron is a transition metal and can have multiple charges (2+ and 3+), the roman numeral is needed to indicate its charge. The formula has a 1:1 ratio between the cation and anion, so the charge on the iron must be the same magnitude, but the opposite sign, for the oxide anion (2-). Iron oxide is incorrect because it does not include the roman numeral, while iron(I) oxide and iron(III) oxide do not have the correct charge for iron in parentheses.

Which ion will correctly complete the formula _________2HPO4?

K+

Potassium iodate can be used to prevent radioactive iodine absorption much like potassium iodide. What is the formula for the compound potassium iodate?

KIO3

What is the name for Pb(SO3)2?

Lead(IV) sulfite The name for the compound with the formula Pb(SO3)2 is lead(IV) sulfite. Since there are two sulfite ions, each with a 2- charge, the charge on lead must be 4+. Lead can have a 2+ or 4+ charge, so a roman numeral is needed to indicate the charge on the cation. Lead(IV) sulfate would have the formula Pb(SO4)2, and lead(II) sulfite is PbSO3.

Which ion will form a compound with a 1:1 cation to anion ratio with chlorate?

Li+

What is the name for Mg(HSO4)2?

Magnesium hydrogen sulfate

What formula represents the compound formed from magnesium and bromate?

Mg(BrO3)2

Which ion will form a compound with one cation and two nitrate ions?

Mg²+

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance containing 63.0 grams of manganese, Mn, and 37.0 grams of oxygen, O?

MnO2 MnO2 is the empirical formula for a substance containing 63.0 grams of Mn and 37.0 grams of O. The empirical formula would be calculated as follows: Determine the number of grams of each element. This information was already provided in the problem. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Since manganese has the smallest ratio of moles, each element will be divided by the number of moles for manganese. This results in an empirical formula of MnO2.

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 25.94% nitrogen and 74.06% oxygen by mass?

N2O5 N2O5 is the empirical formula for a substance containing 25.94% nitrogen and 74.06% oxygen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 25.94 grams of nitrogen and 74.06 grams of oxygen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. The ratio of is 1 mole nitrogen to 2.5 moles oxygen. Multiply both values in the ratio to get whole numbers for the empirical formula. This results in an empirical formula of N2O5.

Which ion will form a compound with bicarbonate in a 1:1 cation to anion ratio?

Na+

Cyanide poisoning can occur when compounds such as sodium cyanide dissociate in water to produce cyanide ions. What is the formula for sodium cyanide?

NaCN

What is the name for the ion with the formula NO2—?

Nitrite

Mass percent composition involves calculating the percentage of mass, for each of the individual elements, in a given substance. Mass percent composition is calculated according to the following equation: The percentages for each of the individual elements will then add up to 100%. Which element has a mass percent composition of 54.50% in Vitamin C, C6H8O6?

O Oxygen, O, has a mass percent composition in Vitamin C, C6H8O6, of 54.50%. The mass percent composition of oxygen would be calculated as follows: The mass percentage of hydrogen is 4.78% and of carbon is 40.92%.

What is the formula for the compound lead(II) cyanide?

Pb(CN)2

Which one correctly pairs the formula and name for a polyatomic ion?

Permanganate, MnO4—

The empirical formula is a chemical formula that provides the smallest, whole number ratio of elements in a compound. Using the mass of each element or the mass percentage of each element in a compound, the empirical can be determined. What is the empirical formula for a substance that contains 50.05% sulfur and 49.95% oxygen by mass?

SO2 SO2 is the empirical formula for a substance containing 50.05% sulfur and 49.95% oxygen by mass. The empirical formula would be calculated as follows: Determine the number of grams of each element. Assume a 100 gram sample of the substance. Therefore, the sample contains 50.05 grams of carbon and 49.95 grams of oxygen. Convert the grams of each element into moles using the molar mass. From the number of moles, the empirical formula can be determined by calculating the mole ratios. Divide by the lowest number of moles from step 2 to determine the mole ratio. This results in an empirical formula of SO2.

What is the name for the compound with the formula Sc(ClO4)3?

Scandium perchlorate Scandium perchlorate is the name for the compound with the formula Sc(ClO4)3. A roman numeral is not included in the name because scandium has only one possible charge, 3+. Scandium chlorate has the formula Sc(ClO3)3.

What is the name for the compound Ag2CO3?

Silver carbonate

What is the name for SO32-?

Sulfite

What is the IUPAC name for NH3, commonly known as "ammonia"?

The IUPAC name for NH3 is nitrogen trihydride. A prefix is not needed for the nitrogen since there is only one atom of the nitrogen in the compound and it is the first element. Trihydride represents the three hydrogen atoms in the formula.

One of the byproducts from internal combustion engines, such as the one in your car, is nitrogen dioxide. As the exhaust passes through the catalytic converter, it forms nitrogen and oxygen. What is the balanced reaction for this process?

The balanced reaction for the decomposition of NO2 is 2NO2 → N2 + 2O2. The formula for nitrogen dioxide is NO2 and both nitrogen and oxygen exist as diatomic elements.

What is the formula for the dihydrogen monosulfide?

The formula for dihydrogen monosulfide is H2S because dihydrogen indicates that there are two hydrogen atoms along with the one sulfur atom indicated by monosulfide.

A story about the dangers of dihydrogen monoxide circulates occasionally online and issues call for it to be banned. What is the formula for this compound?

The formula for dihydrogen monoxide is H2O, commonly known as "water". Dihydrogen indicates that there are two hydrogen atoms and monoxide indicates that there is one oxygen atom. While the statements in this story are true, the message is very misleading.

What is the formula for phosphorus pentabromide?

The formula for phosphorus pentabromide is PBr5. Phosphorus is the first element and does not have a prefix, which indicates that there is only one phosphorus atom in the formula. Pentabromide indicates that there are five bromine atoms in the formula.

What is the formula for phosphorus trihydride, commonly known as "phosphine"?

The formula for phosphorus trihydride is PH3. The name for P3H is triphosphorus monohydride, and the name for P2H3 is diphosphorus trihydride.

Silicon dioxide is found in sand, quartz glass, and silica gel packets found in packaging of shoes and electronics. What is the formula for silicon dioxide?

The formula for silicon dioxide is SiO2. The lack of a prefix before silicon indicates that there is only one atom of silicon in the compound. The prefix di- indicates that there are two oxygen atoms in the formula.

What is the formula for tetraboron decahydride?

The formula for tetraboron decahydride is B4H10. The prefix tetra- indicates four atoms of boron and deca- before hydride means there are ten atoms of hydrogen.

What is the formula for tetraphosphorus nonasulfide?

The formula for tetraphosphorus nonasulfide is P4S9. Tetraphosphorus indicates that there are four atoms of phosphorus and nonasulfide represents the nine atoms of sulfur.

What is the formula for xenon trioxide?

The formula for xenon trioxide is XeO3. The lack of a prefix for xenon indicates that there is one atom of xenon in the formula and trioxide represents the three oxygen atoms. Note that i is not dropped from the prefix name even though it creates a double vowel in the name. The vowel is only dropped from the prefix when it ends in an o or a.

What is the name for the compound with the formula As2O5?

The name for As2O5 is diarsenic pentoxide. The chemical symbol for arsenic is "As" and since there are two arsenic atoms, the di- prefix must be used. The five oxygens in the formula are indicated by the penta- prefix. However, the a is dropped from the prefix to eliminate a double vowel in the name. The symbol for argon is "Ar", and as a noble gas, it does not form covalent compounds.

The common name for B2H6 is diborane. What is the IUPAC name for B2H6?

The name for B2H6 is diboron hexahydride. The prefix di- is used to indicate the two atoms of boron and hexa- indicates the six atoms of hydrogen. The formula for diboron heptahydride is B2H7. The prefix tri-, used in triboron hexhydride (B3H6) and triboron heptahydride (B3H7) indicates three atoms of boron which does not match the given formula.

What is the name for the compound with the formula CBr4?

The name for CBr4 is carbon tetrabromide. The prefix for carbon is omitted because there is only one atom of carbon. The prefix tetra- represents four bromine atoms in the molecule.

What is the name for the compound with the formula CO2?

The name for CO2 is carbon dioxide. Since there is only one atom of the first element, as in CO2, the prefix for the first element is dropped. The prefix for oxygen is di- to represent the two oxygen atoms.

Which pair correctly matches the formula and name for a compound?

The name for ICl3 is iodine trichloride. Iodine does not have a prefix because it is the first element and there is only one atom of iodine. The prefix tri- indicates three for the number of atoms of chlorine. The correct names and formulas for the other compounds are shown in the table.ClF3chlorine trifluorideXeO6xenon hexoxideKrF4krypton tetrafluorideKrF7krypton heptafluoride

What is the name for the compound with the formula IF7?

The name for IF7 is iodine heptafluoride. A prefix is not needed for the iodine, as there is only one atom of the element and it is the first element in the compound. The prefix hepta- indicate that there are seven atoms of fluorine in this compound.

The formula for laughing gas is N2O. What is the IUPAC name for N2O?

The name for N2O is dinitrogen monoxide.Nitrogen oxide is incorrect because nitrogen needs a prefix to indicate two atoms and oxygen needs a prefix because it is the second element.

What is the name for the compound with the formula N2O3?

The name for N2O3 is dinitrogen trioxide. The prefix di- indicates that there are two nitrogen atoms, and trioxide indicates that there are three oxygen atoms in the formula.

What is the name for the compound with the formula N2O5?

The name for N2O5 is dinitrogen pentoxide. The two atoms of nitrogen require the prefix di- to be used and the five oxygen atoms in the formula are represented by pentoxide.

What is the name for the compound with the formula NCl3?

The name for NCl3 is nitrogen trichloride. No prefix is needed for nitrogen because there is only one nitrogen atom. The prefix tri- is used for chlorine to indicate that there are three chlorine atoms in the formula.

What is the name for the compound with the formula P2O5?

The name for P2O5 is diphosphorus pentoxide.There is more than one of each element in the compound so prefixes must be used for both elements, which eliminates phosphorus pentoxide and phosphorus oxide as possible names.Diphosphorus pentaoxygen has the correct prefixes, but since there are two vowels in a row, the a should be dropped from penta. Additionally, the suffix of oxygen should be changed to -ide.PrefixMeaningPrefixMeaningmono1hexa6di2hepta7tri3octa8tetra4nona9penta5deca10

What is the name for the compound with the formula P4S3?

The name for P4S3 is tetraphosphorus trisulfide. Tetraphosphorus indicates that there are four atoms of phosphorus and trisulfide represents the three atoms of sulfur. The formula for triphosphorus tetrasulfide is P3S4 and PS3 is the formula phosphorus trisulfide. Tetraphosphide trisulfide uses the correct prefixes but the suffix of the first element in the name should remain unchanged.

What is the name for the compound with the formula SF6?

The name for SF6 is sulfur hexafluoride. The lack of a prefix for sulfur indicates that there is one atom of sulfur in the formula. Hexafluoride is used to represent the six fluorine atoms in the formula.

What is the name for the compound with the formula SO3?

The name for SO3 is sulfur trioxide. Sulfur does not need a prefix because it is the first element and there is only one atom. The prefix tri- indicates that there are three oxygen atoms in the formula.

One of the uses of hydrazine, N2H4, is as a rocket fuel. What is the IUPAC name for hydrazine?

The name for hydrazine, N2H4, is dinitrogen tetrahydride.

What is wrong with the name monocarbon monooxide for CO?

The name monocarbon monooxide is incorrect for CO because a prefix should not be used for carbon and the letter o should be dropped from prefix for oxygen.If there is only one of the first element, the prefix can be dropped. This does not apply to the second element.If a prefix ends in o or a and the element starts with a vowel, the o or a is dropped. The elements are named in the same order that they are given in the formula.

What is the name for the compound with the formula SnCl4?

Tin(IV) chloride Tin(IV) chloride is the name for the compound with the formula SnCl4. The roman numeral must be included in the name because tin has two possible charges, 2+ and 4+. The formula has four chloride ions, each with a 1- charge, so the charge on tin must be 4+ to balance the charges between the cation and anions.

What is the name for the compound with the formula Sn(CrO4)2?

Tin(IV) chromate Tin(IV) chromate is the name for the compound with the formula Sn(CrO4)2. With two chromate ions, each with a 2- charge, the charge on tin must be 4+ to balance the charges between the cation and anion. Tin cations can have a 2+ or 4+ charge, so a roman numeral must be included in the name. The dichromate ion has the formula Cr2O72-, so tin(IV) dichromate would have the formula Sn(Cr2O7)2. Tin(II) chromate has the formula SnCrO4.

Which of the following correctly pairs a formula with its name?

Zinc Dichromate ZnCr2O7

What is the formula for zinc iodide?

ZnI2 Zinc iodide has the formula ZnI2 because zinc has a 2+ charge and iodide has a 1- charge. Therefore, two iodide ions are needed to balance the charge of the zinc cation. A roman numeral is not needed in the name because zinc only has one possible charge. ZnI, Zn2I, and Zn2I2 do not have ratios that will balance the charges between the cation and anion.

What is the name for the compound with the formula NCl3?

compound with the formula NCl3? The name for NCl3 is nitrogen trichloride. No prefix is needed for nitrogen because there is only one nitrogen atom. The prefix tri- is used for chlorine to indicate that there are three chlorine atoms in the formula.

Which statement best describes the problem(s) with the name dioxide monochlorine for the compound ClO2?

he correct name for ClO2 is chlorine dioxide. With the name dioxide monochlorine, the elements are given in the wrong order and the prefix mono- should be omitted from the chlorine. In naming covalent compounds, the names for the element are given in the same order as shown in the formula, the suffix of the second element is changed to -ide, and prefixes are used to indicate the number of atoms of each element. The prefix for the first element is omitted if there is only one atom of that element.

What is the name for the compound with the formula B2Cl4?

he name for B2Cl4 is diboron tetrachloride.Boron tetrachloride is incorrect because there is more than one atom of boron, so it must have a prefix included in its name.

Which pair correctly matches a formula with its name?

he name for SbBr3 is antimony tribromide. No prefix is needed for the antimony because there is only one atom and it is the first element in the compound. Tribromide indicates that there are three atoms of bromine in the compound.

What are the values of x and y in the compound Nax(CrO4)y?

x = 2, y = 1

What are the values of x and y in the formula Mgx(PO3)y?

x = 3, y = 2