FINAL EXAM

If a solution has a temperature of 255 K, what is its temperature in degrees Celsius? A) 491°C B) 528°C C) 123.9°C D) 355°C E) -18°C

-18°C

What is the volume (in cm3) of a 43.6 g piece of metal with a density of 2.71 g/cm3? A) 16.1 B) 19.5 C) 0.425 D) 6.65 E) none of the above

16.1

Saline solutions (NaCl in water) used to deliver intravenous drugs are 0.89%(w/v). What mass of NaCl would be needed to prepare 450 mL of such a solution? A) 4 x 102 g B) 0.89 g C) 4.0 g D) 5.1 g

4.0 g

How many minutes are in a 30 day month? [Assume exactly 24 hours in a day] A) 7.20 × 10^2 minutes B) 4.32 × 10^4 minutes C) 2.59 × 10^6 minutes D) 3.11 × 10^7 minutes

4.32 × 10^4 minutes

A large balloon is initially filled to a volume of 25.0 L at 353 K and a pressure of 2575 mm Hg. What volume of gas will the balloon contain at 1.35 atm and 253 K? A) 22.2 L B) 87.5 L C) 11.4 L D) 45.0 L E) 58.6 L

45.0 L

Calculate the number of moles of ZnCl2, in 180.0 mL of 0.330 M solution. A) 5.94 x 10^2 mol B) 1.83 mol C) 0.545 mol D) 59.4 mol

5.94 x 10^2 mol

How many valence electrons are there in a sulfur atom? A) 2 B) 3 C) 5 D) 6

6

What is the mass of salt in a 400 gram-sample of salt water which is 1.50% (w/w) salt? A) 1.50 g B) 2.67 g C) 3.00 g D) 6.00 g

6.00 g

How many hydrogen atoms would be needed to complete the following structure? C = C - N - C

7

Which of the following is the smallest number? A) 5 × 10^3 B) 3 × 10^4 C) 2 × 10^-5 D) 7 × 10^-6

7 × 10^-6

To what temperature must a balloon, initially at 25°C and 2.00 L, be heated in order to have a volume of 6.00 L? A) 993 K B) 403 K C) 75 K D) 655 K E) 894 K

894 K

Which of the following is an acceptable way to represent dinitrogen monoxide? A) N2O B) NITRIC OXIDE C) NO2 D) BOTH A AND B

N2O

Sodium chlorate, an ingredient in many common herbicides, has sodium, chlorine and oxygen atoms in the ratio 1:1:3, respectively. What is the formula unit for sodium chlorate? A) NaCO3 B) SoClO3 C) NaClO3 D) none of these

NaClO3

Low electronegativities are associated with which type of elements? A) Metals B) Metalloids C) Noble Gases D) Non Metals

Noble Gases

Total nitrogen in the diet must provide enough nitrogen for the synthesis of

Nonessential amino acids and any other synthesized nitrogen-containing compounds.

Choose the compound from the list below. A) silver B) carbon dioxide C) helium D) tin E) sodium

carbon dioxide

The factor 0.01 corresponds to which prefix? A) deka B) deci C) centi D) milli

centi

Which of the following is a chemical substance than can be broken down into another substance? A) element B) homogeneous mixture C) heterogeneous mixture D) compound

compound

What is the name of CuSO4? A) copper sulfate B) copper (I) sulfate C) copper (II) sulfate D) copper (II) sulfite E) copper (IV) sulfate

copper (II) sulfate

How many significant figures are there in the answer to the following problem? (9.992 × 3.200) + 0.610 = ? A) one B) two C) three D) four

four

Which of the following is not a base unit of the metric system? A) g B) g/L C) L D) All are base units.

g/L

The number of valence electrons of a representative element is related to which of the following? A) atomic number B) atomic weight C) group number D) period number

group number

Identify the element whose ion only exists as 1+. A) barium B) lithium C) lead D) nitrogen E) radon

lithium

A chemical change A) occurs when methane gas is burned. B) occurs when paper is shredded. C) occurs when water is vaporized. D) occurs when salt is dissolved in water. E) occurs when powdered lemonade is stirred into water.

occurs when methane gas is burned.

A physical change A) occurs when iron rusts. B) occurs when sugar is heated into caramel. C) occurs when glucose is converted into energy within your cells. D) occurs when water is evaporated. E) occurs when propane is burned for heat.

occurs when water is evaporated.

Fill in the blank with the appropriate number (0, 1 ,2 ,3 etc.). Consider the following calculation: 143.321 g + 17.89 g + 100.1 g 261.311 g The answer should be round to _____________________ decimal places.

one

What are the horizontal rows of the periodic table called? A) cycles B) periods C) groups D) columns

periods

Give the name for P4O5. A) phosphorus(IV) oxide B) diphosphorus pentoxide C) phosphorus oxide D) phosphorus (V) oxide E) tetraphosphorus pentoxide

phosphorus (V) oxide

When an ionic compound forms between potassium and oxygen atoms? A) potassium donates electrons to oxygen. B) oxygen attains a positive charge and potassium a negative charge. C) oxygen donates electrons to potassium. D) both a and b

potassium donates electrons to oxygen.

Identify the charges of the protons, neutrons, and electrons. A) protons +1, neutrons 0, electrons -1 B) protons 0, neutrons -1, electrons 0 C) protons -1, neutrons -1, electrons 0 D) protons 0, neutrons 0, electrons 0 E) protons +1, neutrons +1, electrons +1

protons +1, neutrons 0, electrons -1

Choose the pure substance from the list below. A) coffee B) a casserole C) water D) salt water E) apple juice

water

In which of the following processes does the energy of the water decrease? A) water freezes B) steam condenses to the liquid C) water evaporates D) water sublimes E) both a and b

water freezes

How many moles of sulfur are there in a 0.685-g sample of sulfur? A) 0.0214 mol B) 46.8 mol C) 22.0 mol D) 32.1 mol

0.0214 mol

Which of the following set-ups will allow you to calculate the cost of fruit in dollars per gram, if the price is given as 0.79 dollars per pound?

0.79 dollars x 2.20 lb lb 1000 g

Aluminum has a density of 2.70 g/ mL. What volume is occupied by a block of aluminum that weighs 4.32 kg? A) 0.000625 mL B) 0.625 mL C) 1.60 mL D) 1.60 L

1.60 L

The prefix centi-denotes what fraction of a base unit? A) 1/10 B) 1/100 C) 1/1000 D) 100

1/100

A sample of gas initially has a volume of 859 mL at 565 K and 2.20 atm. What pressure will the sample have if the volume changes to 268 mL while the temperature is increased to 815 K? A) 10.2 atm B) 9.83 atm C) 15.3 atm D) 6.53 atm E) 1.05 atm

10.2 atm

A person drinks 1900 g of water, H2O, per day. How many moles of water did they consume? A) 3.4 x 10^4 mol B) 0.009 mol C) 105 mol D) 18.02 mol

105 mol

What is the formula weight of ibuprofen, C13H18O2? A) 29.0 g/mol B) 206.3 g/mol C) 289.4 g/mol D) 377.7 g/mol

206.3 g/mol

A particular model of hybrid car can travel 53.0 miles/gallon of gas. What is this fuel efficiency expressed in the metric system? [1 quart = 0.946 L; 1 mile = 1.609 km] A) 8.71 km/L B) 20.2 km/L C) 22.5 km/L D) 90 km/L

22.5 km/L

How many bonds does a phosphorus atom typically form? A) 2 B) 3 C) 4 D) 5 E) 6

3

Aldose contains what functional group?

Aldehyde

Structure B is classified as a(n)

Alkane

C4 H8

Alkene

Structure C is classified as a(n)

Alkene

Structure D is classified as a(n)

Alkyne

Which of the following is could not be used to represent the same compound?

All could represent the same compound.

Structure A is classified as a(n)

Aromatic Compound

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) Molecules in the liquid are moving faster than those in the gas on the average. D) Both a and b are correct. E) All of the above are correct.

Both a and b are correct.

The following equation is an expression of ______________ law. P1 x V1 = P1 x V2 A) Boyle's B) Combined gas C) Gay-Lussac's D) Charles' E) Dalton's

Boyle's

The effect of increasing the temperature on the volume of a gas can be calculated by using _________ law. A) Boyle's B) Combined gas C) Gay-Lussac's D) Charles' E) Dalton's

Charles'

All except which of the following is a characteristics of all monosaccharides?

Contain a six-membered ring.

Which of the following contains a sulfur atom as part of the side chain?

Cysteine

Carbohydrates that contain two sugar units chemically linked together are called

Disaccharides

Which of the following statements is generally true about electronegativity? A) Electronegativity decreases as we move left to right and decreases as we move top to bottom. B) Electronegativity decreases as we move left to right and increases as we move top to bottom. C) Electronegativity increases as we move left to right and decreases as we move top to bottom. D) Electronegativity increases as we move left to right and increases as we move top to bottom.

Electronegativity increases as we move left to right and decreases as we move top to bottom.

Which of the following is the appropriate ending for the name of an alkene?

Ene

The following compound is classified as an alkane.

FALSE

The following compound would be correctly classified as an alkyne.

FALSE

The following molecule contains two functional groups, an alkane group and an alkyne.

FALSE

The following representation accurately depicts the structure of a peptide group.

FALSE

The following two substances would have the same physical properties.

FALSE

The variation in pressure with temperature is defined by ____________________ law. A) Boyle's B) Combined gas C) Gay-Lussac's D) Charles' E) Dalton's

Gay-Lussac's

What monosaccharides are present in lactose that's present in milk?

Glucose + Galactose

Which of the following is an analog of starch in animals?

Glycogen

The linkage between the two monosaccharide units of a disaccharide is a

Glycosidic Linkage

In the compound shown below, which atoms, if any, do not form the correct number of covalent bonds?

H, C AND O.

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.07 g/mL, 1.81 g/mL, 1.93 g/mL, and 1.75 g/mL. If the actual value for the density of the sugar solution is 1.75 g/mL, which statement below best describes her results? A) Her results are precise, but not accurate. B) Her results are accurate, but not precise. C) Her results are both precise and accurate D) Her results are neither precise nor accurate. E) It isn't possible to determine with the information given.

It isn't possible to determine with the information given.

Using most common charges, the ionic compound that forms between lithium and sulfur has the formula A) Li2S B) LiS C) LiS2 D) Li2S3

Li2S

Give the formula for lithium nitrate. A) LiNO3 B) Li3NO C) Li3NO3 D) LiNO E) Li(NO3)3

LiNO3

What is the name of a branch on the principal carbon chain that contains three carbon atoms?

Propyl

Consider the structure of the compound shown below. This compound is correctly characterized as:

Saturated

An amino acid can be correctly characterized as:

TRUE

Calcium carbonate is used as a phosphate binder to treat someone with too much phosphate, known as hyperphosphatemia, as can be seen in renal/kidney failure. The formula for this compound is CaCO3. A) TRUE B) FALSE

TRUE

Nonessential amino acids are those which can be synthesized by the body.

TRUE

The compound below is unlikely to exist.

TRUE

The compound is a hydrocarbon and an aromatic compound

TRUE

The compound represented below has the formula Na2S. Na+ S2- Na+ A) TRUE B) FALSE

TRUE

The electron arrangement for Na would be: shell 1: 2 electrons shell 2: 8 electrons shell 3: 1 electron A) TRUE B) FALSE

TRUE

The following compound contains four tetrahedrally arranged atoms.

TRUE

The following represents a balanced chemical equation. Al (NO3)3 (aq) + Na 3PO4 (aq) --> AIPO4(s) + 3NaNO3(aq) A) TRUE B) FALSE

TRUE

The following represents a typical energy diagram. The reaction represented by this energy diagram is endothermic. A) TRUE B) FALSE

TRUE

The line structure for is shown below.

TRUE

The pie chart shown below represents the elemental composition of the human body including water. A) TRUE B) FALSE

TRUE

The primary fuel source for the cells of the nervous system, which is an important energy source for all body tissues is glucose.

TRUE

The two compounds shown below have the same molecular formula.

TRUE

Which monosaccharide has 4 carbon atoms?

Tetrose

The mass of an object is A) the force between the object and the earth. B) a measure of the amount of matter in the object. C) the amount of space the object occupies. D) depends on the location of the object on Earth.

a measure of the amount of matter in the object.

Examine the following representation of a change of state. Which of the following is the correct term for this change? A) freezing B) sublimation C) evaporation D) boiling E) melting

sublimation

The product/s in a chemical reaction are analogous to which of the following? A) a baked cake B) the flour, eggs, chocolate used to bake a cake C) the cake pan. D) the heat of the oven

the flour, eggs, chocolate used to bake a cake.

An ionic bond is best described as A) the sharing of electrons. B) the transfer of electrons from one atom to another. C) the attraction that holds the atoms together in a polyatomic ion. D) the attraction between two nonmetal atoms. E) the attraction between two metal atoms.

the transfer of electrons from one atom to another.