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.   hydrosulfurous acid
B.   hydrosulfuric acid
C.   sulfurous acid
D.   sulfuric acid
E.   none of these
Question #2
The correct name for an aqueous solution of H2CO3 is
A.   hydrocarbonous acid
B.   hydrocarbonic acid
C.   carbonic acid
D.   carbonate acid
E.   carbonous acid
Question #3
The name for HBrO3(aq) is
A.   hydrogen bromous acid
B.   bromic acid
C.   perbromic acid
D.   bromous acid
E.   hypobromous acid
Question #4
A mixture of sand and water is a(n) ______________.
A.   aqueous solution
B.   solution
C.   solvent
D.   none of these
E.   solute
Question #5
Indicate the total number of isomers in the following compound: C4H10
A.   4
B.   8
C.   6
D.   2
E.   5
Question #6
The general name given to hydrocarbons with triple bonds is
A.   unsaturated hydrocarbons
B.   aromatic hydrocarbons
C.   alkenes
D.   alkanes
E.   alkynes
Question #7
True or false? Cyclohexane is an example of an alkane.
A.   TRUE
B.   FALSE
Question #8
Name the following molecule. CH3 – (CH2)7 – CH3
A.   octane
B.   decane
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.   4.8 x 1011 M
C.   none of these
D.   2.1 X 10-12 M
E.   4.8 x 10-17 M
Question #10
A solution where [H+] = 10-13 M is ______________.
A.   neutral
B.   basic
C.   two of these
D.   acidic
E.   strongly acidic
Question #11
The correct name for an aqueous solution of HC2H3O2 is
A.   acetic acid
B.   hydrocarbonic acid
C.   hydrocarbonate acid
D.   none of these
E.   hydroacetic 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.   hydrocyanic acid
B.   sulfuric acid
C.   acetic acid
Question #14
The name for HCN(g) is ______________.
A.   hydrocyanic acid
B.   hydrogen cyanide
C.   hydroacetic acid
Question #15
Classify the following reaction: HNO3(aq) + KOH(aq) → KNO3(aq) +H2O(l)
A.   acid-base
B.   combustion
C.   none of these
D.   precipitation
E.   oxidation-reduction
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.   HClO.
C.   HClO4.
D.   HClO3.
E.   HCl.
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.   TRUE
B.   FALSE
Question #20
The name for the acid HNO3 is ______________.
A.   nitric acid
B.   acetic acid
Question #21
CH3C≡CCH2CH2Cl is named
A.   1-acetylenyl-3-chloropropane
B.   1-chloro-3-pentyne
C.   5-chloro-2-pentyne
D.   1-chloro-3-pentene
E.   5-chloro-2-pentene
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.   CuSO4
B.   AgBr
C.   (NH4)2CO3
D.   KI
E.   LiNO3
Question #24
The name for the acid H2SO3 is
A.   hydrosulfurous acid
B.   sulfurite acid
C.   sulfurous acid
D.   hydrosulfuric 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.   6
B.   3
C.   2
D.   8
E.   4
Question #26
A solution has [OH–] = 5.3 X 10–4 M. The pH of this solution is
A.   3.45
B.   5.32
C.   3.28
D.   10.72
Question #27
Calculate the [H+] in a solution that has a pH of 5.51.
A.   5.51
B.   3.1 X 10-6 M
C.   3.1 X 10+6 M
D.   8.49
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.   precipitation
B.   synthesis
C.   decomposition
D.   acid-base
E.   oxidation
Question #30
Give the name of the molecule CH3CH=CHCH2CH3.
A.   2-pentene
B.   2-heptane
Question #31
Name the following: CH3(CH2)7 CH3
A.   heptane
B.   hexane
C.   decane
D.   nonane
E.   octane
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.   3 only
B.   1 and 2 only
C.   1, 2, and 3
D.   1 only
E.   2 only
Question #33
The correct name for an aqueous solution of HBr is
A.   hypobromic acid
B.   bromic acid
C.   hydrobromic acid
D.   hypobromous acid
E.   hydrobromous acid
Question #34
An aqueous solution of HF would be named
A.   hydrofluoric acid
B.   none of these
C.   hydrogen fluoride
D.   perfluoric acid
E.   hypofluorous acid
Question #35
A solution with a pH of 2 is how many times more acidic as a solution with a pH of 5?
A.   7
B.   10000
C.   3
D.   1000
E.   0.4
Question #36
The correct name for HClO4(aq) is ______________.
A.   bromic acid
B.   perchloric acid
C.   hydroacetic acid
Question #37
  
A.   an electrical solute
B.   a strong electrolyte
C.   none of these
D.   a weak electrolyte
E.   a strong ion
Question #38
The correct name for an aqueous solution of H3PO4 is
A.   phosphorous acid
B.   phosphoric acid
C.   hydrophosphorus acid
D.   hydrophosphoric acid
E.   phosphate acid
Question #39
The name for HCl(aq) is ______________.
A.   hydrobromic acid
B.   hydrochloric 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.   3.79
C.   6.1 X 10-4 M
D.   1.6 X 10 M
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.   186 g
C.   18.6 g
D.   none of these
Question #42
Which of the following is the correct formula for perbromic acid?
A.   HBrO2(aq)
B.   HBrO(aq)
C.   HBrO3(aq)
D.   HBrO4(aq)
Question #43
Cyclobutane has 109.5° bond angles like all alkanes.
A.   TRUE
B.   FALSE
Question #44
In soda pop, CO2(g) is a ______________, and water is the ______________.
A.   solution; solute
B.   solvent; solution
C.   solvent; solute
D.   solute; solution
E.   solute; solvent
Question #45
All the following compounds are soluble in water EXCEPT
A.   LiCl.
B.   NH4Cl.
C.   CuCl2.
D.   AgCl.
E.   CsCl.
Question #46
  
A.   In a neutral solution, [H+] = [OH-]
B.   In an acidic 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 a basic solution,[OH-] > [H+]
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.   C9H16
C.   C9H9
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.   1.74 M
B.   2.48 M
C.   4.00 M
D.   1.99 M
Question #49
The reaction AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is a(n) ______________ reaction.
A.   oxidation-reduction
B.   single-replacement
C.   precipitation
D.   acid-base
Question #50
All the following compounds are insoluble in water EXCEPT
A.   CuCO3.
B.   Fe(NO3)2.
C.   CaCO3.
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.   118.2 mL
C.   4.37 mL
D.   143.2 mL
Question #52
When a precipitation (solid formation) reaction occurs, the ions that do not form the precipitate
A.   are cations only
B.   form a second insoluble compound in the solution
C.   evaporate
D.   are left dissolved in the solution
Question #53
The name for the acid HNO2 is
A.   nitric acid
B.   hydronitric acid
C.   nitrous acid
D.   hydronitrous 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.   0.0667 M
B.   0.641 M
C.   2.13 M
D.     
E.   0.297 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.   1.72
B.   2.86
C.   12.28
D.   0.159
Question #57
True or false? In an unsaturated hydrocarbon, the carbon-carbon bond angles are always 120o.
A.   TRUE
B.   FALSE
Question #58
Name the molecule CH3C≡CCH2CH3.
A.   2-pentyne
B.   2-heptane
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 107 M
C.   3.7 X 10-8 M
D.   3.7 X 108 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.   67.9%
C.   32.1%
D.   43.1%
Question #61
All the following salts are insoluble EXCEPT
A.   lead(II) sulfate.
B.   lead(II) carbonate.
C.   lead(II) nitrate.
D.   lead(II) sulfide.

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