Final Exam

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Question #1

Which represents the greatest mass?

A 1.0 mol Zn

B 1.0 mol Fe

C all the same

D 1.0 mol Al

E 1.0 mol Cu

Question #2

The oxidation product of a primary alcohol is

A a ketone.

B a tertiary alcohol.

C an ether.

D an acid.

E an alkene.

Question #3

The most characteristic reaction of the alkenes is

A substitution.

B addition and elimination.

C addition.

D oxidation.

E reduction.

Question #4

If temperature and pressure are held constant, the volume and number of moles of a gas are

A inversely proportional

B independent of each other

C not enough information given

D directly proportional

E equal

Question #5

How many electrons are in the third principal energy level (n = 3) of one atom of Fe?

A none of these

B 14

C 2

D 18

E 8

Question #6

At 1 atm of pressure and a temperature of 0°C, which phase(s) of H2O can exist?

A water vapor only

B water only

C ice and water vapor

D ice and water

E ice only

Question #7

Perform the indicated conversion: 2.63 X 103 cal = _______________ J

A 11.0 J

B 1.59 x 10–3 J

C 629 J

D 6.29 X 105 J

E 1.10 X 104 J

Question #8

Which of the following is an incorrect designation for an atomic orbital?

A 1s

B 2p

C 4f

D 3s

E 2d

Question #9

True or false? Reduction is a gain of electrons.

A FALSE

B TRUE

Question #10

If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 5.30 M sugar solution, you will end up with a sugar solution of ________.

A 4.38 M

B 4.15 M

C 10.95 M

D 7.30 M

E 0.166 M

Question #11

You have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.01042 M solution?

A 2.61 mL

B 22.4 mL

C 214.9 mL

D 26.1 mL

E 239.9 mL

Question #12

The alkaline earth metals have how many valence electrons?

A 2

B 1

C 7

D 3

E 8

Question #13

True or false? The law of conservation of enery states that energy can be converted from one form to another but can be neither created nor destroyed.

A FALSE

B TRUE

Question #14

Which of the following has a double C-O bond and a single C-O bond?

A ester

B aldehyde

C amine

D ketone

E alcohol

Question #15

The state of matter for an object that has a definite volume but not a definite shape is

A mixed

B liquid

C gaseous

D elemental

E solid

Question #16

A solution with a pH of 2.17 is

A neutral

B acidic

C basic

Question #17

The number of protons in a given nucleus determines the

A mass number.

B number of protons.

C atomic number.

D number of isotopes.

E number of electrons.

Question #18

An aqueous solution of sodium carbonate is reacted with an aqueous solution of calcium chloride.

Identify the solid in the balanced equation.

A NaCl

B There is no solid formed when the two solutions are mixed.

C Na2CO3

D CaCl2

E CaCO3

Question #19

A given set of d orbitals consists of ______________ orbital(s).

A 1

B 5

C 3

D 6

Question #20

The number of significant figures in 0.074100 × 10–4 is

A 4

B 5

C 7

D 3

E 6

Question #21

The air in the inner tube of the tire of a racing bike has a pressure of 110.2 psi. Convert this pressure to atm.

A 110.2 atm

B 1620 atm

C 1.088 atm

D 7.497 atm

E 0.1450 atm

Question #22

Choose the state of water in which the water molecules are farthest apart on average.

A all the same

B ice (solid)

C liquid

D steam (vapor)

Question #23

If you were to heat pentanoic acid and 2-butanol with a strong acid, you would most likely discover in your flask:

A an ester

B a ketone

C an amine

D an alkane

E an aldehyde

Question #24

The number of unpaired electrons in a nitrogen atom is

A 5

B 6

C 7

D 4

E 3

Question #25

A solution has [OH–] = 2.8 X 10–7 M. The [H+] in this solution is

A 2.8 X 107 M

B 3.6 X 10–8 M

C 2.8X 107 M

D 3.6 X 107 M

Question #26

A solution with a pH of 2 is how many times more acidic as a solution with a pH of 3?

A 10

B 0.7

C 2

D 5

E 100

Question #27

Name the following:

CH3C ≡ CCH2CH2Cl

A 2-chloro-5pentyne

B 5-chloro-2pentyne

Question #28

True or false? The calorie is defined as the amount of energy (heat) required to raise the temperature of one gram of water by one degree Celsius.

A TRUE

B FALSE

Question #29

The reaction HCl(aq) + KOH(aq) → H2O(l) + KCl(aq) is a(n) ______________ reaction.

A single-replacement

B precipitation

C acid-base

D oxidation-reduction

E none of these

Question #30

True or false? N2 is an example of a covalent bond.

A FALSE

B TRUE

Question #31

Which of the following compounds contains an ionic bond?

A SO2

B CCl4

C HCl(g)

D NaCl

E O2

Question #32

The oxidation product of a secondary alcohol is

A an acid.

B a tertiary alcohol.

C an aldehyde.

D a ketone.

E an ester.

Question #33

When an electron in the ground state absorbs energy, it goes to a(n) ______________ state.

A lower

B ionic

C frenetic

D excited

E stable

Question #34

The complete combustion of heptane, C7H16, which is a volatile hydrocarbon, yields carbon dioxide and water:
__ C7H16 + __ O2 → __ CO2 + __ H2O
The coefficient of oxygen in the balanced equation is

A 15

B 9

C 8

D 13

E 11

Question #35

The best answer to report for 131.00 – 31.9904 is

A 99.010.

B 99.0096.

C 99.01.

D 99

E 99.0.

Question #36

The total mass of a solution is 171.5 g. The solvent mass is 125.2 g. What is the mass percent of the solute?

A 18.1%

B Not enough information is given.

C 27.0%

D 38.0%

E 73.0%

Question #37

Which of the following compounds contains one or more covalent bonds?

A NaCl

B Cs2O

C BaBr2

D CaO

E CO2

Question #38

The elements chlorine and iodine have similar chemical properties because they

A have the same number of electrons in their outer energy levels

B are both metals

C none of these

D have the same number of stable isotopes

E are in the same chemical period

Question #39

Which of the following will yield a carboxylic acid upon oxidation?

A a ketone

B tertiary alcohol

C a cycloalkane

D a secondary alcohol

E an aldehyde

Question #40

Chemical reactions involving alkanes in which hydrogen atoms are removed and the product is an unsaturated hydrocarbon are called

A polymerization reactions.

B substitution reactions.

C dehydrogenation reactions.

D combustion reactions.

E addition reactions.

Question #41

A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called

A a weak electrolyte

B an electrical solute

C a strong electrolyte

D none of these

E a strong ion

Question #42

How many protons, electrons, and neutrons, respectively, does 127I have?

A 74, 53, 127

B 53, 53, 127

C 53, 53, 74

D 53, 74, 53

E 53, 127, 74

Question #43

H2CCHCH2N(CH3)2 is

A an alkyne and a tertiary amine.

B an alkene and a tertiary amine.

C an alkyne and a secondary amine.

D an alkene and a primary amine.

Question #44

There are three isotopes of carbon differing with respect to

A neutrons.

B number of protons.

C electron configuration.

D atomic number.

F nuclear charge.

Question #45

True or false? Arrhenius postulated that acids produce hydrogen ions in aqueous solution, whereas bases produce hydroxide ions.

A TRUE

B FALSE

Question #46

True or false? CH4 has ionic bonds.

A TRUE

B FALSE

Question #47

The chemical formula for iron(III) sulfide is

A Fe2(SO3)3.

B Fe2(SO4)3.

C Fe2S3.

D Fe3(SO3)2.

Question #48

3.03 mol of CO2 at STP will occupy

A 67.9 g

B 67.9 L

C 33.9 L

D 8.93 × 10–2 L

E 74.1 L

Question #49

Oxidation of a primary alcohol results in a(n) __________ and oxidation of a secondary alcohol results in a(n) _________.

A ketone, aldehyde

B ester, ether

C aldehyde, ketone

D carboxylic acid, amine

E amine, carboxylic acid

Question #50

True or false? The equation N2(g) + 3H2(g) → 2NH3(g) can be interpreted by saying that 1 mol of N2 reacts with 3 mol of H2 to form 2 mol of NH3.

A FALSE

B TRUE

Question #51

Which of the following statements is/are correct?

A In a basic solution,[OH-] > [H+]

B In a neutral solution, [H+] = [OH-]

C In an acidic solution, [H+] > [OH-], In a basic solution,[OH-] > [H+], and In a neutral solution, [H+] = [OH-] .

D In an acidic solution, [H+] > [OH-]

E None of the above statements are correct.

Question #52

The formula for potassium carbonate is

A Po2CO3.

B K2CO3.

C K2C.

D P2C.

E P2CO3.

Question #53

A 2.2-mol sample of KClO3 was decomposed according to the equation 2KClO3(s) → 2KCl(s) + 3O2(g) How many moles of O2 are formed?

A 3.3 mol

B 1.5 mol

C 1.8 mol

D 2.2 mol

E 1.1 mol

Question #54

1s22s22p63s23p64s23d7 is the electron configuration for which of the following atoms?

A Fe

B Ar

C Cr

D Ca

E Co

Question #55

Heat is typically measured in

A °C

B °F

C grams

D joules

Question #56

Calculate the heat given off when 101.4 g of copper cools from 155.0oC to 23.0oC. The specific heat of copper is 0.385 J/g oC.

A 3.48 × 104 J

B none of these

C 6.05 × 103 J

D 5.15 × 103 J

E 8.98 × 102 J

Question #57

In the reaction 2Cs(s) + Cl2(g) → 2CsCl(s), the chlorine is ______________.

A electrolyzed

B synthesized

C reduced

D oxidized

Question #58

Identify the type of organic compound shown: (CH3)3N

A ketone

B aldehyde

C ester

D amine

Question #59

Which of the following elements is most similar to chlorine?

A H

B Hg

C He

D Br

E Na

Question #60

Which particle has the smallest mass?

A proton

B helium nucleus

C electron

D neutron

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