Chem 051 - Fundamentals of Chemistry » Winter 2021 » Homework Week 4
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Question #1
True or false? Carbon can form single and double bonds with other atoms, but not triple bonds.
A.
B.
TRUE
C.
FALSE
Question #2
The correct name for an aqueous solution of HCl is
A.
hypochlorous acid
B.
hypochloric acid
C.
perchloric acid
D.
hydrochloric acid
E.
chloric acid
Question #3
True or false? Those compounds whose carbon-carbon bonds are all single bonds are said to be unsaturated.
A.
FALSE
B.
TRUE
Question #4
What is the formula for ethane?
A.
C2H6
B.
C4H10
C.
C6H6
D.
C3H8
E.
C5H10
Question #5
What is the correct formula for the saturated alkane that contains nine carbon atoms?
A.
C9H18
B.
C9H7
C.
C9H20
D.
C9H16
E.
C9H9
Question #6
How many isomeric alkanes of the molecular formula C4H10 are there?
A.
2
B.
5
C.
4
D.
3
Question #7
Name the following: CH3 CH2 CH3
A.
pentane
B.
butane
C.
ethane
D.
propane
Question #8
The total mass of a solution is 178.3 g. The solvent mass is 125.2 g. What is the mass percent of the solute?
A.
40.8%
B.
29.8%
C.
70.2%
D.
20.0%
Question #9
The correct name for an aqueous solution of H2SO4 is
A.
hydrosulfurous acid
B.
sulfuric acid
C.
sulfurous acid
D.
hydrosulfuric acid
Question #10
A straight-chain alkyne has six carbon atoms. Its molecular formula is
A.
C6H8.
B.
C7H10-.
C.
C6H10.
D.
C6H12.
Question #11
Which of the following is an incorrect name for an acid?
A.
hydrocyanic acid
B.
hydrocarbonate acid
C.
phosphoric acid
D.
acetic acid
E.
sulfurous acid
Question #12
The name for the acid H2SO3 is
A.
sulfurous acid
B.
sulfuric acid
C.
hydrosulfuric acid
D.
hydrosulfurous acid
E.
sulfurite acid
Question #13
Name the following molecule. CH3 – (CH2)7 – CH3
A.
hexane
B.
heptane
C.
octane
D.
decane
E.
nonane
Question #14
CH3C ≡ CCH2CH2Cl is named:
A.
1-chloro-3-pentyne
B.
5-chloro-2-pentyne
C.
5-chloro-2-pentene
D.
1-chloro-3-pentene
E.
1-acetylenyl-3-chloropropane
Question #15
Calculate the [H+] in a solution that has a pH of 8.70.
A.
2.0 X 10–7 M
B.
2.0 X 10–8 M
C.
2.0 X 10–9 M
D.
5.0 X 10–7 M
Question #16
If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 5.78 M sugar solution, you will end up with a sugar solution of ________.
A.
4.39 M
B.
0.176 M
C.
11.67 M
D.
4.67 M
E.
7.78 M
Question #17
You have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.02466 M solution?
A.
61.7 mL
B.
101.4 mL
C.
6.17 mL
D.
18.8 mL
E.
76.4 mL
Question #18
The correct name for an aqueous solution of H2CO3 is
A.
hydrocarbonic acid
B.
carbonous acid
C.
carbonic acid
D.
hydrocarbonous acid
E.
carbonate acid
Question #19
A solution has [H+] = 4.2 X 10–3 M. The [OH–] in this solution is
A.
2.4 X 10–12 M
B.
1.2 X 10–14 M
C.
2.4 X 10–14 M
D.
4.2 X 10–14 M
Question #20
A solution with a pH of 2.17 is
A.
basic
B.
acidic
C.
neutral
Question #21
True or false? A straight-chain saturated hydrocarbon cannot contain more than 10 carbon atoms.
A.
TRUE
B.
FALSE
Question #22
True or false? Butane is an example of an alkane.
A.
TRUE
B.
FALSE
Question #23
A solution with a pH of 2 is how many times more acidic as a solution with a pH of 6?
A.
8
B.
0.3
C.
3
D.
10000
E.
100000
Question #24
The correct name for an aqueous solution of H3PO4 is
A.
phosphate acid
B.
phosphorous acid
C.
phosphoric acid
D.
hydrophosphoric acid
E.
hydrophosphorus acid
Question #25
True or false? In an unsaturated hydrocarbon, the carbon-carbon bond angles are always 120o.
A.
FALSE
B.
TRUE
Question #26
Determine the concentration of a solution made by dissolving 26.1 g of sodium chloride in 750.0 mL of solution.
A.
19.6 M
B.
0.595 M
C.
0.447 M
D.
0.335 M
E.
34.8 M
Question #27
The hydrocarbon containing a carbon–carbon double bond is called a(n)
A.
alkyne.
B.
alkene.
C.
cycloalkane.
D.
aromatic.
E.
alkane.
Question #28
A solution has [OH–] = 2.7 X 10–7 M. The [H+] in this solution is
A.
3.7 X 10-8 M
B.
1.0 X 107 M
C.
2.7 X 107 M
D.
3.7 X 107 M
Question #29
The correct name for an aqueous solution of HC2H3O2 is
A.
hydrocarbonate acid
B.
hydroacetic acid
C.
acetic acid
D.
hydrocarbonic acid
Question #30
The correct name for an aqueous solution of HCN is
A.
hydrocyanous acid
B.
hydrocyanic acid
C.
cyanous acid
D.
cyanic acid
E.
cyanate acid
Question #31
The general name given to hydrocarbons with triple bonds is
A.
alkynes
B.
alkenes
C.
aromatic hydrocarbons
D.
unsaturated hydrocarbons
E.
alkanes
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