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.   TRUE
B.   FALSE
C.     
Question #2
The correct name for an aqueous solution of HCl is
A.   hypochloric acid
B.   perchloric acid
C.   chloric acid
D.   hypochlorous acid
E.   hydrochloric 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.   C6H6
C.   C5H10
D.   C4H10
E.   C3H8
Question #5
What is the correct formula for the saturated alkane that contains nine carbon atoms?
A.   C9H18
B.   C9H7
C.   C9H9
D.   C9H16
E.   C9H20
Question #6
How many isomeric alkanes of the molecular formula C4H10 are there?
A.   3
B.   4
C.   2
D.   5
Question #7
Name the following: CH3 CH2 CH3
A.   propane
B.   butane
C.   ethane
D.   pentane
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.   70.2%
B.   29.8%
C.   40.8%
D.   20.0%
Question #9
The correct name for an aqueous solution of H2SO4 is
A.   sulfurous acid
B.   sulfuric acid
C.   hydrosulfuric acid
D.   hydrosulfurous acid
Question #10
A straight-chain alkyne has six carbon atoms. Its molecular formula is
A.   C6H12.
B.   C6H10.
C.   C7H10-.
D.   C6H8.
Question #11
Which of the following is an incorrect name for an acid?
A.   phosphoric acid
B.   hydrocarbonate acid
C.   acetic acid
D.   hydrocyanic acid
E.   sulfurous acid
Question #12
The name for the acid H2SO3 is
A.   sulfuric acid
B.   hydrosulfurous acid
C.   hydrosulfuric acid
D.   sulfurite acid
E.   sulfurous acid
Question #13
Name the following molecule. CH3 – (CH2)7 – CH3
A.   nonane
B.   heptane
C.   hexane
D.   octane
E.   decane
Question #14
CH3C ≡ CCH2CH2Cl is named:
A.   1-chloro-3-pentyne
B.   1-acetylenyl-3-chloropropane
C.   5-chloro-2-pentene
D.   5-chloro-2-pentyne
E.   1-chloro-3-pentene
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 10–9 M
C.   5.0 X 10–7 M
D.   2.0 X 10–8 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.   7.78 M
C.   11.67 M
D.   4.67 M
E.   0.176 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.   76.4 mL
B.   6.17 mL
C.   61.7 mL
D.   18.8 mL
E.   101.4 mL
Question #18
The correct name for an aqueous solution of H2CO3 is
A.   hydrocarbonic acid
B.   carbonic acid
C.   carbonate acid
D.   carbonous acid
E.   hydrocarbonous acid
Question #19
A solution has [H+] = 4.2 X 10–3 M. The [OH–] in this solution is
A.   1.2 X 10–14 M
B.   4.2 X 10–14 M
C.   2.4 X 10–14 M
D.   2.4 X 10–12 M
Question #20
A solution with a pH of 2.17 is
A.   neutral
B.   basic
C.   acidic
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.   FALSE
B.   TRUE
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.   100000
C.   3
D.   0.3
E.   10000
Question #24
The correct name for an aqueous solution of H3PO4 is
A.   phosphate acid
B.   phosphorous acid
C.   hydrophosphoric acid
D.   hydrophosphorus acid
E.   phosphoric acid
Question #25
True or false? In an unsaturated hydrocarbon, the carbon-carbon bond angles are always 120o.
A.   TRUE
B.   FALSE
Question #26
Determine the concentration of a solution made by dissolving 26.1 g of sodium chloride in 750.0 mL of solution.
A.   34.8 M
B.   0.335 M
C.   19.6 M
D.   0.595 M
E.   0.447 M
Question #27
The hydrocarbon containing a carbon–carbon double bond is called a(n)
A.   aromatic.
B.   alkyne.
C.   cycloalkane.
D.   alkane.
E.   alkene.
Question #28
A solution has [OH–] = 2.7 X 10–7 M. The [H+] in this solution is
A.   2.7 X 107 M
B.   1.0 X 107 M
C.   3.7 X 10-8 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.   hydrocyanic acid
B.   cyanic acid
C.   hydrocyanous acid
D.   cyanous acid
E.   cyanate acid
Question #31
The general name given to hydrocarbons with triple bonds is
A.   alkenes
B.   alkynes
C.   alkanes
D.   unsaturated hydrocarbons
E.   aromatic hydrocarbons

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