Chem 051 - Fundamentals of Chemistry » Winter 2021 » Exam 4
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Question #1
The correct name for an aqueous solution of H2SO4 is
A.
hydrosulfuric acid
B.
sulfurous acid
C.
hydrosulfurous acid
D.
none of these
E.
sulfuric acid
Question #2
The correct name for an aqueous solution of H2CO3 is
A.
carbonate acid
B.
carbonous acid
C.
hydrocarbonous acid
D.
carbonic acid
E.
hydrocarbonic acid
Question #3
The name for HBrO3(aq) is
A.
bromous acid
B.
hydrogen bromous acid
C.
perbromic acid
D.
hypobromous acid
E.
bromic acid
Question #4
A mixture of sand and water is a(n) ______________.
A.
aqueous solution
B.
solute
C.
none of these
D.
solution
E.
solvent
Question #5
Indicate the total number of isomers in the following compound: C4H10
A.
4
B.
2
C.
5
D.
8
E.
6
Question #6
The general name given to hydrocarbons with triple bonds is
A.
alkynes
B.
aromatic hydrocarbons
C.
alkenes
D.
alkanes
E.
unsaturated hydrocarbons
Question #7
True or false? Cyclohexane is an example of an alkane.
A.
FALSE
B.
TRUE
Question #8
Name the following molecule. CH3 – (CH2)7 – CH3
A.
decane
B.
octane
C.
nonane
D.
heptane
E.
hexane
Question #9
A solution has [H+] = 4.8 X 10–3 M. The [OH–] in this solution is
A.
1.0 10–14 M
B.
2.1 X 10-12 M
C.
4.8 x 1011 M
D.
4.8 x 10-17 M
E.
none of these
Question #10
A solution where [H+] = 10-13 M is ______________.
A.
neutral
B.
strongly acidic
C.
acidic
D.
basic
E.
two of these
Question #11
The correct name for an aqueous solution of HC2H3O2 is
A.
hydrocarbonate acid
B.
none of these
C.
hydroacetic acid
D.
acetic acid
E.
hydrocarbonic acid
Question #12
The name for HCN(aq) is ______________.
A.
hydrocarbonous acid
B.
hydrocyanic acid
C.
acetic acid
Question #13
The name for the acid HC2H3O2 is ______________.
A.
sulfuric acid
B.
acetic acid
C.
hydrocyanic acid
Question #14
The name for HCN(g) is ______________.
A.
hydrocyanic acid
B.
hydroacetic acid
C.
hydrogen cyanide
Question #15
Classify the following reaction: HNO3(aq) + KOH(aq) → KNO3(aq) +H2O(l)
A.
combustion
B.
oxidation-reduction
C.
none of these
D.
acid-base
E.
precipitation
Question #16
True or false? A straight-chain saturated hydrocarbon cannot contain more than 10 carbon atoms.
A.
FALSE
B.
TRUE
Question #17
The formula for chlorous acid is
A.
HClO2.
B.
HClO3.
C.
HCl.
D.
HClO.
E.
HClO4.
Question #18
True or false? Hexene has the formula C6H14 in which all the bond angles are 109.5o.
A.
TRUE
B.
FALSE
Question #19
True or false? Carbon can form single and double bonds with other atoms, but not triple bonds.
A.
FALSE
B.
TRUE
Question #20
The name for the acid HNO3 is ______________.
A.
acetic acid
B.
nitric acid
Question #21
CH3C≡CCH2CH2Cl is named
A.
1-chloro-3-pentyne
B.
1-chloro-3-pentene
C.
5-chloro-2-pentene
D.
5-chloro-2-pentyne
E.
1-acetylenyl-3-chloropropane
Question #22
True or false? When carbon has four atoms bound to it, these atoms will have a square planar arrangement about the carbon, where every angle is 900.
A.
TRUE
B.
FALSE
Question #23
Which of the following ionic compounds is INSOLUBLE in water?
A.
(NH4)2CO3
B.
LiNO3
C.
AgBr
D.
KI
E.
CuSO4
Question #24
The name for the acid H2SO3 is
A.
sulfurous acid
B.
hydrosulfurous acid
C.
hydrosulfuric acid
D.
sulfurite acid
E.
sulfuric acid
Question #25
When the following equation is balanced, what is the coefficient for H2O? __Ca(OH)2(aq) + __H3PO4(aq) → __Ca3(PO4)2(s) + __H2O(l)
A.
3
B.
2
C.
4
D.
8
E.
6
Question #26
A solution has [OH–] = 5.3 X 10–4 M. The pH of this solution is
A.
3.28
B.
3.45
C.
10.72
D.
5.32
Question #27
Calculate the [H+] in a solution that has a pH of 5.51.
A.
8.49
B.
3.1 X 10+6 M
C.
3.1 X 10-6 M
D.
5.51
Question #28
True or false? Those compounds whose carbon-carbon bonds are all single bonds are said to be unsaturated.
A.
TRUE
B.
FALSE
Question #29
In what type of reaction is water always a product?
A.
acid-base
B.
decomposition
C.
oxidation
D.
precipitation
E.
synthesis
Question #30
Give the name of the molecule CH3CH=CHCH2CH3.
A.
2-heptane
B.
2-pentene
Question #31
Name the following: CH3(CH2)7 CH3
A.
heptane
B.
decane
C.
octane
D.
nonane
E.
hexane
Question #32
All the following oxoacids and names 1. H2SO3 sulfurous acid 2. HBrO2 bromous acid 3. H2CO3 carbonic acid is (are) correct EXCEPT
A.
1, 2, and 3
B.
3 only
C.
1 and 2 only
D.
2 only
E.
1 only
Question #33
The correct name for an aqueous solution of HBr is
A.
hypobromic acid
B.
hypobromous acid
C.
hydrobromous acid
D.
bromic acid
E.
hydrobromic acid
Question #34
An aqueous solution of HF would be named
A.
hydrofluoric acid
B.
none of these
C.
perfluoric acid
D.
hypofluorous acid
E.
hydrogen fluoride
Question #35
A solution with a pH of 2 is how many times more acidic as a solution with a pH of 5?
A.
3
B.
7
C.
0.4
D.
1000
E.
10000
Question #36
The correct name for HClO4(aq) is ______________.
A.
bromic acid
B.
perchloric acid
C.
hydroacetic acid
Question #37
A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called
A.
an electrical solute
B.
a weak electrolyte
C.
a strong electrolyte
D.
none of these
E.
a strong ion
Question #38
The correct name for an aqueous solution of H3PO4 is
A.
phosphoric acid
B.
hydrophosphorus acid
C.
phosphate acid
D.
phosphorous acid
E.
hydrophosphoric acid
Question #39
The name for HCl(aq) is ______________.
A.
hydrochloric acid
B.
hydrobromic acid
Question #40
Solid calcium hydroxide is dissolved in water until the pH of the solution is 10.21. The hydroxide ion concentration [OH–] of the solution is
A.
1.6 X 10-4 M
B.
1.6 X 10 M
C.
6.1 X 10-4 M
D.
3.79
Question #41
An oven-cleaning solution is 40.0% (by mass) NaOH. If one jar of this product contains 466 g of solution, how much NaOH does it contain?
A.
11.7 g
B.
18.6 g
C.
none of these
D.
186 g
Question #42
Which of the following is the correct formula for perbromic acid?
A.
HBrO4(aq)
B.
HBrO2(aq)
C.
HBrO(aq)
D.
HBrO3(aq)
Question #43
Cyclobutane has 109.5° bond angles like all alkanes.
A.
FALSE
B.
TRUE
Question #44
In soda pop, CO2(g) is a ______________, and water is the ______________.
A.
solute; solution
B.
solvent; solution
C.
solute; solvent
D.
solution; solute
E.
solvent; solute
Question #45
All the following compounds are soluble in water EXCEPT
A.
AgCl.
B.
CsCl.
C.
NH4Cl.
D.
CuCl2.
E.
LiCl.
Question #46
A.
In a neutral solution, [H+] = [OH-]
B.
In an acidic solution, [H+] > [OH-]
C.
In a basic solution,[OH-] > [H+]
D.
In an acidic solution, [H+] > [OH-], In a basic solution,[OH-] > [H+], and In a neutral solution, [H+] = [OH-] .
E.
None of the above statements are correct.
Question #47
What is the correct formula for the saturated alkane that contains nine carbon atoms?
A.
C9H18
B.
C9H9
C.
C9H16
D.
C9H20
Question #48
You have 250.0 mL of 4.00 M sugar solution. You add 324.0 mL of water to this solution. Determine the concentration of the sugar solution after the water has been added.
A.
1.99 M
B.
1.74 M
C.
4.00 M
D.
2.48 M
Question #49
The reaction AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is a(n) ______________ reaction.
A.
precipitation
B.
oxidation-reduction
C.
acid-base
D.
single-replacement
Question #50
All the following compounds are insoluble in water EXCEPT
A.
CaCO3.
B.
CuCO3.
C.
Fe(NO3)2.
D.
BaSO4.
Question #51
You have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.01746 M solution?
A.
20.6 mL
B.
4.37 mL
C.
118.2 mL
D.
143.2 mL
Question #52
When a precipitation (solid formation) reaction occurs, the ions that do not form the precipitate
A.
are left dissolved in the solution
B.
form a second insoluble compound in the solution
C.
evaporate
D.
are cations only
Question #53
The name for the acid HNO2 is
A.
nitric acid
B.
nitrous acid
C.
hydronitrous acid
D.
hydronitric acid
Question #54
A solution is prepared by dissolving 9.48 g of Na2SO4 in enough water to make 225 mL of solution. Calculate the solution molarity.
A.
0.641 M
B.
2.13 M
C.
D.
0.297 M
E.
0.0667 M
Question #55
True or false? To prepare 20.0 mL of a 2.00 M solution of hydrochloric acid from a 10.0 M stock solution, you should take 4.00 mL of the stock solution and add 20.0 mL of water.
A.
TRUE
B.
FALSE
Question #56
A solution is prepared by dissolving 104.1 g HCl(g) in enough water to make 150.0 L of solution. The pH of this solution is
A.
0.159
B.
2.86
C.
12.28
D.
1.72
Question #57
True or false? In an unsaturated hydrocarbon, the carbon-carbon bond angles are always 120o.
A.
FALSE
B.
TRUE
Question #58
Name the molecule CH3C≡CCH2CH3.
A.
2-heptane
B.
2-pentyne
Question #59
A solution has [OH–] = 2.7 X 10–7 M. The [H+] in this solution is
A.
7.3 X 10-8 M
B.
3.7 X 108 M
C.
3.7 X 107 M
D.
3.7 X 10-8 M
Question #60
The total mass of a solution is 184.4 g. The solvent mass is 125.2 g. What is the mass percent of the solute?
A.
21.5%
B.
43.1%
C.
32.1%
D.
67.9%
Question #61
All the following salts are insoluble EXCEPT
A.
lead(II) carbonate.
B.
lead(II) nitrate.
C.
lead(II) sulfide.
D.
lead(II) sulfate.
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