CHEM 1601 FINAL

What is the IUPAC name of the following compound? a. methyl propyl methanol b. 2-pentanol c. 1-methyl-1-butanol d. 4-pentanol

2-pentanol

In a particular titration experiment a 25.0 mL sample of an unknown monoprotic acid required 30.0 mL of 0.200 M NaOH for the end point to be reached. What is the concentration of the acid? a. 0.120 M b. 0.167 M c. 0.240 M d. 0.333 M

0.240 M

A solution is prepared by dissolving 3.50 grams of NH4Cl (molar mass = 53.49 g/mol) in enough water to make 250 mL of solution. What is the concentration of this solution? a. 0.0327 M b. 0.0654 M c. 0.131 M d. 0.262 M

0.262 M

A gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23 C to a final volume of 34.6 L. During the expansion the gas cools to 12 C. What is the final pressure? a. 0.28 atm b. 0.52 atm c. 0.57 atm d. 1.9 atm

0.52 atm

Which of the following molecules can exist as cis-trans isomers? a. 1,1-dimethylcyclobutane b. 1,2-dimethylcyclobutane c. both a and b d. neither a nor b

1,2-dimethylcyclobutane

Markovnikov's rule is useful to predict the outcome of the reaction of hydrogen chloride with which of the following alkenes? a. 1-butene b. 2-butene c. both a and b d. Neither a nor b

1-butene

Which of the following is not a correct IUPAC name for an alkene? a. 1-methyl-1-butene b. 2-methyl-1-butene c. 3-methyl-1-butene d. 2-methyl-2-butene

1-methyl-1-butene

Which of the following alcohols is least soluble in water? a. 1-pentanol b. 1-octanol c. 1-hexanol d. 2-propanol

1-octanol

Which of the following alcohols has the lowest boiling point? a. 1-pentanol b. 1-octanol c. 1-hexanol d. 1-heptanol

1-pentanol

Which of the following is the numerical value of Kw for water at room temperature a. 1.0 x 10^-14 b. 1.0 x 10^-7 c. 1.0 x 10^7 d. 1.0 x 10^14

1.0 x 10^-14

When solutions of AgNO3 and NaCl react, the balanced molecular equation is: AgNO3(aq) _ NaCl(aq) -> AgCl(s) + NaNO3(aq) How much AgCl is produced when 3.10g of AgNO3 (molar mass = 169.87 g/mol) and 0.600 g of NaCl (molar mass = 58.44 g/mol) react? a. 1.47g b. 2.23g c. 2.62g d. 3.70g

1.47g

The pKa of formic acid is 3.75. What is the Ka of formic acid? a. 1.8 x 10^-18 b. 5.6 x 10^-11 c. 1.8 x 10^-4 d. 5.6 x 10^3

1.8 x 10^-4

What is the approximate pKa of a thiol? a. 5 b. 7 c. 10 d. 14

10

What is the mass of BaCl2 (molar mass = 208.23 g/mol) in a 0.250 L bottle of 0.200 M BaCl2? a. 5.21g b. 10.4g c. 41.7g d. 52.1g

10.4g

At constant temperature the pressure on a 6.0 L sample of a gas is reduced from 2.0 atm to 1.0 atm. What is the new volume of the gas sample? a. 0.083 L b. 0.33 L c. 3.0 L d. 12 L

12 L

How many aldehydes have the molecular formula C4H8O? a. 1 b. 2 c. 3 d. 4

2

Of the four alcohols with molecular formula C4H10O, how many are primary alcohols? a. 1 b. 2 c. 3 d. 4

2

Which of the following is the correct set of integer coefficients for the balanced equation, respectively: ___ C6H14(g) + ___ O2(g) -> ___CO2(g) + ___ H2O(g) a. 1, 1, 1, 1, b. 1, 3, 6, 7 c. 1, 9.5, 6, 7 d. 2, 19, 12, 14

2, 19, 12, 14

Of the compounds listed here, which one is not a constitutinal isomer of the other three? a. 2,3-dimethylpentane b. 3-methylhexane c. 3-ethylpentane d. 2,2-dimethylbutane

2,2-dimethylbutane

What is the correct IUPAC name for the following compound? a. 1,1-dimethylpentane b. 2,2-dimethylpentane c. 1,1,1-trimethylbutane d. 4,4,4-trimethylbutane

2,2-dimethylpentane

Which isomer of pentane has the lowest boiling point? a. Pentane b. 2-methylbutane c. 2,2-dimethylpropane d. None, they all have the same boiling point

2,2-dimethylpropane

Which of the following alkenes, all of which have the molecular formula C5H10, would you expect to have the lowest boiling point? a. 4-methyl-1-pentene b. 4-methyl-2-pentene c. 2,3-dimethyl-2-butene d. 2-hexene

2,3-dimethyl-2-butene

What is the correct IUPAC name for the following compound? a. 2-methyl-3-propyl-2-butene b. 1,1,2-trimethyl-1-pentene c. 2,3-dimethyl-2-hexene d. none of these

2,3-dimethyl-2-hexene

What type of alcohol is formed by the hydration of 1-butene? a. 1-bromo-2-methylpentane b. 2-bromo-2methylpentane c. 2,3-dibromo-2-methylpentane d. 3,3-dibromo-2-methylpentane

2-bromo-2-methylpentane

Markovnikov's rule is not useful for predicting the outcome of the reaction of hydrogen chloride with which of the following alkenes? a. 1-butene b. 2-butene c. 2-methylpropene d. 1-pentene

2-butene

Of the following alkenes, all of which have the molecular formula C5H10, which would you expect to have the highest boiling point? a. 4-methyl-1-pentene b. 4-methyl-2pentene c. 2,3-dimethyl-2-butene d. 2-hexene

2-hexene

Which of the following is the IUPAC name for the following compound? CH3 | CH3CHCH2SH a. isobutyl mercaptan b. sec-butyl mercaptan c. 2-methyl-1-propanthiol d. 2-methyl-1-propanethiol

2-methyl-1-propanethiol

Which of the following is not a correct IUPAC name for an alkene? a. 2-methyl-1-butene b. 2-methyl-2-butene c. 2-methyl-3-butene d. None, these are all correct IUPAC names

2-methyl-3-butene

Which of the following, all of which have the molecular formula C5H10, has cis and trans isomers? a. 2-methyl-1-butene b. 2-methyl-2-butene c. 2-pentene d. None of them

2-pentene

Which of the following is the correct IUPAC name of the following compound? a. 1-propylphenol b. 2-propylphenol c. 2-hydroxypropylbenzene d. 2-propyl-1-hydroxybenzene

2-propylphenol

If a 7.00 gram sample of molecular nitrogen (N2) at 10.0 C occupies 2.50 L, what is the pressure of the sample? a. 1.28 atm b. 2.32 atm c. 2.56 atm d. 4.65 atm

2.32 atm

A sodium hydroxide solution has a pH of 11.40, what is the [OH-] in this solution? a. 4.0 x 10^-26 M b. 4.0 x 10^ -12 M c. 2.5 x 10^-3 M d. 2.5 x 10^11 M

2.5 x 10^-3 M

The pKa of lactic acid is 3.86. What is the pH of a buffer in which the lactic acid concentration is 2.0 M and the sodium lactate concentration is 0.50 M? a. 2.86 b. 3.26 c. 4.46 d. 4.86

2.86

A solution of iodine in carbon tetrachloride is 0.100 M. How much carbon tetrachloride must be added to 50.0 mL of this solution to reduce the concentration to 0.0250 M? a. 50.0 mL b. 100 mL c. 150 mL d. 200 mL

200 mL

How many constitutional isomers are possible when there are three identical substituents on a benzene ring? a. 2 b. 3 c. 4 d. 5

3

What is the IUPAC name of the following compound? a. 2-methyl-4-hexanol b. 5-methyl-3-hexanol c. 3-hydroxy-5-methylhexane d. 4-hydroxy-2-methylhexane

3-hydroxy-5-methlhexane

Which of the following compounds, all of which have the molecular formula C6H12, has cis and trans isomers? a. 2-methyl-1-pentene b. 2-methyl-2-pentene c. 3-methyl-2-pentene d. They have cis-trans isomers

3-methyl-2-pentene

What is the % (w/w) of a salt solution prepared by dissolving 7.5g of salt in 242.5g of water? a. 0.030% b. 0.30% c. 0.75% d. 3.0%

3.0%

At constant pressure the temperature of a 4.00 L sample of gas is decreased from 400 K to 300 K. What is the new volume of the gas sample? a. 0.188 L b. 0.333 L c. 3.00 L d. 5.33 L

3.00 L

Including cis-trans isomers, how many different alkenes have the molecular formula C4H8? a. 2 b. 3 c. 4 d. 5

4

Which of the following is a correct IUPAC name? a. 4-ethyl-1-methylcyclohexene b. 5-ethyl-2-methylcyclohexene c. 1-methyl-4-ethylcyclohexene d. 5-methyl-2-ethylcyclohexene

4-ethyl-1-methylcyclohexene

How much does a sample of 5.75 mol diethyl ether, C4H10O, weigh? a. 5.75g b. 12.9g c. 74.1g d. 426g

426g

What is the IUPAC name for the following compound? a. 1-amino-2chloro-5-bromobenzene b. 5-bromo-2-chloroaniline c. 1-chloro-4-bromo-2-aniline d. 4-bromo-1-chloro-2-aniline

5-bromo-2-chloroaniline

How many molecules are present in one mole of glucose, C6H12O6? a. 6.92 x 10^-26 b. 3.34 x 10^21 c. 6.02 x 10 ^23 d. 1.44 x 10^25

6.02 x 10^23

Which of the following pH's corresponds to a slightly acidic solution? a. 2.8 b. 6.8 c. 7.2 d. 11.2

6.8

Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C2H4(g) + H2O(g) -> C2H5OH(l) If water is present in excess, how many grams of ethanol (molar mass = 46.07 g/mol) can be produced from 42.7g of ethylene (molar mass = 28.05 g/mol)? a. 42.7g b. 46.1g c. 70.1g d. 92.2g

70.1g

Diethyl ether can be made from ethanol. The balanced equation is: 2 C2H5OH(l) - (C2H5)2O(l) + H2O(l) In one experiment 46.0g of ethanol (molar mass = 46.07 g/mol) yielded 34.7g of diethyl ether (molar mass = 74.12 g/mol). What was the percent yield in this experiment? a. 62.1 % b. 80.4 % c. 93.8% d. 97.0%

93.8%

What is the formula weight of ammonium carbonate, (NH4)2CO3? a. 78.1 amu b. 96.1 amu c. 108.4 amu d. 138.2 amu

96.1 amu

A beaker of salt water has some solid salt at the bottom? What type of solution is in the beaker? a. A saturated solution b. A supersaturated solution c. An unsaturated solution d. We cannot tell

A saturated solution

Which of the following solutions can function as a buffer? a. a solution containing HCl and NaCl b. a solution containing NaOH and NaCl c. a solution containing NH3 and NH4Cl d. None of the above

A solution containing NH3 and NH4Cl

Which of the following is the most characteristic reaction of alkenes? a. addition b. oxidation c. reduction d. substitution

Addition

In the reaction Pb(s) + 2 Ag^+(aq) -> Pb^2+ (aq) + 2 Ag(s) which species is the oxidizing agent? a. Pb(s) b. Ag^+(aq) c. Pb^2+(aq) d. Ag(s)

Ag^+(aq)

Compounds which contain a carbon-carbon double bond are classified as which of the following? a. alkanes b. alkenes c. alkynes d. arenes

Alkenes

Which of the following statements is true about the solubility of alkenes? a. All alkenes are soluble in water b. Long chain alkenes are soluble in water, but short chain alkenes are insoluble c. Long chain alkenes are insoluble in water, but short chain alkenes are soluble d. All alkenes are soluble in alkanes

All alkenes are soluble in alkanes

Which of the following will be essentially insoluble in water? a. ethane b. octane c. pentane d. all of them

All of them

Compounds which contain one or more benzene-like rings are classified as which of the following? a. alkanes b. alkenes c. alkynes d. arenes

Arenes

Which of the following can be characterized as a strong base? a. Ba(OH)2 b. NH3 c. Both a and b d. Neither a nor b

Ba(OH)2

For the reaction A + B -> 2 C, which of the following statements is true? a. B is consumed at the same rate that A is consumed b. C is produced at twice the rate A is consumed c. Both a and B d. Neither a nor b

Both a and b

Water is generally a good solvent for which of the following types of compounds? a. Ionic compounds b. Polar compounds c. Both a and b d. Neither a nor b

Both a and b

Which of the following best describes the relationship of molecules in a liquid with those in a gas at the same temperature? a. Molecules in the liquid are much closer together than those in the gas b. Molecules in the liquid have less kinetic energy than those in the gas c. both a and b d. neither a nor b

Both a and b

Which of the following reactions involves the addition of two equivalent groups to the two ends of a double bond? a. bromination b. hydrogenation c. both a and b d. neither a nor b

Both a and b

Which of the following is the correct molecular formula for hexane? a. C6H6 b. C6H10 c. C6H14 d. C6H16

C6H14

What is the molecular formula for the following compound? a. C7H16 b. C8H16 c. C8H17 d. C8H18

C8H18

Which of the following is not the molecular formula for nonane? a. C7H16 b. C9H20 c. C11H24 d. none of these

C9H20

Which of the following is an example of a secondary amine? a. CHNH2 b. CH3CH2NH2 c. CH3CH2NHCH3 d. None of these

CH3CH2NHCH3

Which of the following is a constitutional isomer of butane, CH3(CH2)2CH3? a. CH3CH2CH2 | CH3 b. CH3 | CH2CH2CH3 c. CH3CHCH3 | CH3 d. all of these

CH3CHCH3 | CH3

Which of the following is an example of a secondary alcohol? a. CH3OH b. CH3CHCH3 | OH c. CH3CH2OH d. None of these

CH3CHCH3 | OH

Which of the following is an example a carboxylic ester? a. HCCH2OCH3 || O b.CH3COCH3 || O c. Both a and b d. Neither a nor b

CH3COCH3 || O

Which of the following molecules can have only London dispersion forces? a. CH4 b. CO c. Both a and b d. Neither a nor b

CH4

Which of the following compounds is a carboxylic acid? a. COOH b. CHO c. OCH3 d. COOCH3

COOH

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom? a. aldehydes b. carboxylic acids c. ketones d. all of these

Carboxylic acids

The -C-OR group is the functional group of which of the following types of compounds? a. carboxylic acids b. aldehydes c. carboxylic esters d. ketones

Carboxylic esters

Chloroform has a normal boiling point of 61.7 C. Which of the following is true? a. At any temperature the vapor pressure of chloroform is less than that of water. b. Chloroform is more volatile than water. c. Both a and b are correct d. Neither a nor b is correct

Chloroform is more volatile than water

What is the name of the following compound? a. cis-1-methyl-3-ethylcyclopentane b. cis-1-ethyl-3-methylcyclopentane c. trans-1-methyl-3-ethylcyclopentane d. trans-1-ethyl-3-methylcyclopentane

Cis-1-ethyl-3-methylcyclopentane

Which of the following is not an example of an intermolecular attraction? a. covalent bonding b. dipole-dipole interactions c. London dispersion forces d. hydrogen bonding

Covalent bonding

Which of the following is true? a. Decreasing the activation energy decreases the reaction rate b. Decreasing the activation energy increases the reaction rate c. The activation energy of an exothermic reaction is negative d. There is no relationship between activation energy and reaction rate

Decreasing the activation energy increases the reaction rate

For the reaction A + B -> C, which of the following best describes how we can measure the reaction rate? a. The rate can be measured by measuring how fast A is consumed b. The rate can be measured by measuring how fast C is produced c. Either of the above procedures can be used d. Neither of the above procedures can be used

Either of the above procedures can be used

In which state of matter are the attractive forces between molecules the weakest? a. Solid b. Liquid c. Gaseous d. None, the attractive forces are the same in all of them.

Gaseous

Which of the following occurs when hydrogen chloride gas is dissolved in water to form hydrochloric acid? a. A complex between HCl and water is formed b. H+ is transferred from HCl to water c. H+ is transferred from water to HCl d. There is no reaction, HCl molecules remain present

H+ is transferred from HCl to water

Which of the following gases is produced when an acid reacts with an active metal? a. CO2(g) b. H(g) c. H2(g) d. H2O(g)

H2(g)

Which of the following is the conjugate acid of HPO4^2-? a. H3PO4 b. H2PO4^- c. PO4^3- d. H3O^+

H2PO4^-

Which of the following molecules can have dipole-dipole interactions? a. CH4 b. H2S c. Both a and b d. Neither a nor b

H2S

Which of the following molecules can engage in hydrogen bonding? a. HF b. HCl c. HBr d. HI

HF

Markovnikov's rule is useful in predicting the outcome for which of the following addition reactions of unsymmetrical alkenes? a. hydration b. bromination c. both a and b d. neither a nor b

Hydration

Which of the following reactions involves the addition of two equivalent groups to the two ends of a double bond? a. hydrogenation b. hydrobromination c. both a and b d. neither a nor b

Hydrogenation

In a phenol, which group is the substituent on the benzene ring? a. amino b. carbonyl c. carboxyl d. hydroxyl

Hydroxyl

As the temperature of a liquid is increased what happens to the vapor pressure? a. It decreases b. It increases c. It remains the same d. The change depends on the identity of the liquid

It increases

Which of the following is the study of the rates of chemical reactions? a. Kinetics b. Stiochemistry c. Thermodynamics d. None of these

Kinetics

For small molecules, which of the following usually is the weakest intermolecular interaction? a. covalent bonding b. dipole-dipole interactions c. London dispersion forces d. hydrogen bonding

London dispersion forces

What is the name of the -OCH3 group? a. methyloxy b. methoxy c. oxymethyl d. oxymeth

Methoxy

Which of the following terms can be used to quantitatively describe the concentration of a solution? a. Concentrated b. Dilute c. Molarity d. All of these

Molarity

Which of the following is the definition of molarity? a. Moles of solute/1000 grams of solvent b. Moles of solute/liter of solution c. Moles of solute/liter of solvent d. Moles of solvent/1000 gram of solute

Moles of solute/liter of solution

What are the two acids in the following reaction? NH4^+(aq) + HPO4^2- <-> NH3 + H2PO4^- a. NH4^+ and HPO42^- b. NH4^+ and NH3 c. HPO42^- and H2PO4^- d. NH4^+ and H2PO4^-

NH4^+ and H2PO4^-

Which of the following is an example of a carboxylic acid? a. HCCH2OH || O b. CH3COCH3 || O c. Both a and b d. Neither a nor b

Neither a nor b

Which of the following is generally true of organic compounds? a. They are typically high melting solids b. Most are soluble in water c. Both a and b d. Neither a nor b

Neither a nor b

Which of the following reactions involves the addition of different groups to the two ends of a double bond? a. bromination b. hydrogenation c. both a and b d. neither a nor b

Neither a nor b

What is produced when benzene reacts with nitric acid in the presence of sulfuric acid? a. only nitrobenzene b. nitrobenzene and NO c. nitrobenzene and NO2 d. nitrobenzene and water

Nitrobenzene and water

In organic compounds, which of the following elements normally forms three covalent bonds? a. Carbon b. Hydrogen c. Nitrogen d. Oxygen

Nitrogen

Which of the following has the highest boiling point? a. heptane b. hexane c. octane d. nonane

Nonane

Which of the following is not the molecular formula of an alkane? a. C15H32 b. C19H40 c. C20H42 d. None of them, these are all alkanes

None of them, these are all alkanes

Ethers react readily with which of the following? a. H2 b. most acids c. potassium dichromate d. none of these

None of these

A student has equal-volume of samples of three gases. All the gases are at the same temperature and pressure. If the three gases are O2, CO2, NH3, which sample contains the largest number of molecules? a. O2 b. CO2 c. NH3 d. None, they all contain the same number of molecules

None, they all contain the same number of molecules

Which of the following is not a base? a. HPO4^2- b. OH c. NH3 d. None, they are all bases

None, they are all bases

Which of the following is true of the alcohol functional groups in 2-methyl-1, 2-propanediol? a. One is primary and one is secondary b. One is primary and one is tertiary c. Both are primary d. Neither is primary

One is primary and one is tertiary

In organic compounds, which of the following elements normally forms two covalent bonds? a. Carbon b. Hydrogen c. Nitrogen d. Oxygen

Oxygen

Which isomer of pentane has the highest boiling point? a. Pentane b. 2-methylbutane c. 2,2-dimethylpropane d. None, they all have the same boiling point

Pentane

What is the most specific name for the C6H5- group? a. aryl b. arenyl c. phenol d. phenyl

Phenyl

Alkanes belong to which class of hydrocarbons? a. alkali b. aromatic c. saturated d. unsaturated

Saturated

What type of alcohol is formed by the hydration of 1-butene? a. primary b. secondary c. tertiary d. none of these, the product is not an alcohol

Secondary

What type of alcohol is formed by the hydration of 2-butene? a. primary b. secondary c. teriary d. None of these, the product is not an alcohol

Secondary

Which of the following is true regarding the solubility of liquids and solids? a. Solubility always decreases as temperature increases b. Solubility always increases as temperature increases c. Solubility usually decreases as temperature increases d. Solubility usually increases as temperature increases

Solubility usually increases as temperature increases

In a solution of a solid in a liquid, the solid is called which of the following? a. Concentrate b. Dissolvate c. Solute d. Solvent

Solvent

Which aromatic ring substitution reaction is used in the preparation of synthetic detergents? a. reduction b. halogenation c. nitration d. sulfonation

Sulfonation

Which of the following is true in the IUPAC system for naming alkenes? a. The alkene is named based on the longest carbon chain which contains the double bond. b. The position of the double bond is always given the highest possible number. c. The position and identity of substituents determines the number associated with the position of the double bond. d. None of the above is correct

The alkene is named based on the longest carbon chain which contains the double bond.

Which of the following is true of effective collisions? a. The number of effective collisions decreases as the temperature is increased. b. The number of effective collisions determines the reaction rate c. Both a and b d. Neither a nor b

The number of effective collisions determines the reaction rate

Which of the following is the characteristic feature of all alkenes? a. The presence of one or more carbon-carbon double bonds b. The presence of one or more carbon-carbon triple bonds c. The presence of at least one carbon-carbon double bond, and at least one carbon-carbon triple bond d. The presence of a ring system

The presence of one or more carbon-carbon double bonds

Which of the following will occur if the temperature of a gas is increased from 20 C to 40 C at constant pressure? a. The volume will double b. The volume will be halved c. The volume will decrease slightly d. The volume will increase slightly

The volume will increase slightly

Which of the following is generally true of most organic compounds? a. Their bonding is covalent in nature b. Their aqeuous solutions conduct electricity c. Both a and b d. Neither a nor b

Their bonding is covalent in nature

Which of the following buffers will have the lowest pH? a. a solution containing 0.10 M HC2H3O2 and 0.10 M NaC2H3O2 b. a solution containing 0.20 M HC2H3O2 and 0.20 M NaC2H3O2 c. a solution containing 0.30 M HC2H3O2 and 0.30 M NaC2H3O2 d. They all have the same pH

They all have the same pH

Which of the following correctly describes the two aromatic ring substituents in the xylenes? a. They are both hydroxyl groups b. They are both methyl groups c. One is a methyl and one is an hydroxyl d. One is a methyl and one is an ethyl

They are both methyl groups

Which of the following correctly describes the relationship between butane and 2-methylpropane? a. They have the same molecular formula b. They have the same chemical properties c. They have the same physical properties d. All of the above are true

They have the same molecular formula

Which of the following is true regarding mass relationships in a chemical reaction? a. To determine mass relationships in a chemical reaction, you first need to know the balanced chemical equation for the reaction. b. To convert from grams to moles and vice versa, you need to use Avogadro's number as a conversion factor. c. Both a and b are true. d. Both a and b are false.

To determine mass relationships in a chemical reaction, you first need to know the balanced chemical equation for the reaction.

Which of the following compounds is a hydrocarbon? a. aniline b. anisole c. phenol d. toluene

Toluene

The atomic weight of copper is greater than that of chromium. If you have a 10g sample of each of these metals, which of the following is true? a. You have fewer atoms of copper than of chromium. b. You have equal numbers of atoms of copper and chromium. c. You have more atoms of copper than of chromium d. There is insufficient information to determine which of the above is true.

You have fewer of atoms of copper than of chromium.

Thiols are most closely related to which of the following classes of compound? a. alcohols b. aldehydes c. carboxylic acids d. ketones

alcohols

Which of the following reactions involves the addition of different groups to the two ends of a double bond? a. hydration b. hydrogenation c. both a and b d. neither a nor b

hydration