Chapter 7 E-homework Question Pool (Due 7/28)

    Answers are given in bold
 
 

        Question 1    Bases are:
 
 

                                                Proton donors
                                               Proton acceptors
                                                Very unreactive with acids
                                                Sour in taste
 
 

     Question 2    Which one of the following is not an acidic substance?
 
 

                                                Vinegar
                                                Orange Juice
                                                Vitamin C
                                               Table Salt
 
 

     Question 3    Which answer describes the behavior of NH3 in the following reaction: NH3 + H2O ->
                                            NH4+ + OH-?
 
 

                                                NH3 is a proton acceptor and is therefore an acid.
                                                NH3 is a proton donor and is therefore a base.
                                               NH3 is a proton acceptor and is therefore a base.
                                                NH3 is a proton donor and is therefore an acid.
 
 

     Question 4    When nonmetal oxides react with water the resulting solution is _____.
 
 

                                                salty
                                               acidic
                                                neutral
                                                basic
 
 

     Question 5     Which is a weak base in aqueous solution?
 
 

                                                NH3
                                                HCN
                                                NaOH
                                                KOH
 
 

     Question 6     The acid in automobile batteries is
 
 

                                                hydrochloric acid
                                                nitric acid
                                                phosphoric acid
                                                sulfuric acid
 
 

     Question 7     Sodium bicarbonate is an old standby antacid. It is not recommended for persons
                                            suffering from high blood pressure because
 
 

                                                it is too strong an acid
                                                it is too strong a base
                                               of the presence of sodium ion
                                                of the presence of bicarbonate ion
 
 

     Question 8     All antacids are
 
 

                                                acids
                                               bases
                                                neutral
                                                salts
 
 

     Question 9      Predict the product of the following acid?base neutralization reaction: LiOH + HNO3 ->
 
 

                                                LiNO + O2 + H2O
                                                LiNO3 + H2O
                                                LiO + NO2 + H2O
                                                No reaction occurs.
 
 

     Question 10     A window cleaner has a pH of 9. The cleaner would best be labelled
 
 

                                                strongly acidic
                                                weakly acidic
                                                strongly basic
                                               weakly basic
 
 

     Question 11     What is the formula for carbonic acid, a polyprotic acid?
 
 

                                                HCO3
                                                H2CO2
                                               H2CO3
                                                HCO2
 
 

     Question 12    When an aqueous solution containing hydrochloric acid is just neutralized with an
                                            aqueous solution containing sodium hydroxide, the solution would taste
 
 

                                                sour
                                                bitter
                                               salty
                                                sweet
 
 

     Question 13    A 0.01 solution of HCl has a pH of:
 
 

                                                1
                                               2
                                                5
                                                7
 
 

     Question 14    Which one of the following is a hydroxide ion?
 
 

                                               OH-
                                                H+
                                                H3O+
                                                H2O-
 
 

     Question 15        Which of the following chemicals could be used as an active ingredient in a
                                            commercial antacid?
 
 

                                                CO2
                                               Al(OH)3
                                                HNO3
                                                H2CO3
 
 

     Question 16    Water can act as:
 
 

                                                Both as a strong acid and a strong base.
                                               Both as a very weak acid and a very weak base.
                                                As a very weak base only.
                                                As a very weak acid only.
 
 

     Question 17     When added to water, which one of the following would produce an acid?
 
 

                                                Na
                                                MgO
                                                NH3
                                               SO3
 
 

     Question 18     What is the pOH of a solution that has a hydronium ion concentration of 1.0 x 10-3 M?
 
 

                                                -3
                                                3
                                                -11
                                                11
 
 

     Question 19    If a solution has a pH of 13, it is
 
 

                                                strongly acidic
                                               strongly basic
                                                weakly acidic
                                                weakly basic
 
 

     Question 20    Predict the product of the following reaction: CO2 + H2O ->
 
 

                                               H2CO3
                                                CO + H2 + O2
                                                CH2 + 3/2 O2
                                                HCO2 + HO
 
 

     Question 21    Sodium hydroxide is classified as a strong base in water. This means that it
                                            produces
 
 

                                                no hydroxide ions
                                                a relatively small fraction of the maximum number of hydroxide ions
                                                a relatively large fraction of the maximum number of hydroxide ions
                                               100% of the maximum number of hydroxide ions
 
 

     Question 22    Which of the following is not a typical property of an acid?
 
 

                                                Acids taste sour.
                                                Acids dissolve active metals to produce hydrogen gas.
                                               Acids cause red litmus indicator dye to turn blue.
                                                Acids react with bases to form water and ionic compounds called salts.
 
 

     Question 23    An hydrogen ion, H+, is the same as a(n)
 
 

                                                hydronium ion
                                               proton
                                                electron
                                                hydrate
 
 

     Question 24    When citric acid is produced by the cells of an orange and dissolves in water, it
                                            produces a relatively small number of hydronium ions. Citric acid is best described
                                            as a
 
 

                                                dilute acid
                                                concentrated acid
                                               weak acid
                                                strong acid
 
 

     Question 25    Which of the following choices gives the formula for the hydronium ion?
 
 

                                                OH-
                                               H3O+
                                                H+
                                                H3O
 
 

     Question 26    Antiacid commercial products (like Maalox, Alka-Seltzer etc.) are:
 
 

                                                Strongly acidic, so that they can lower the pH of the stomach.
                                                Weakly acidic, so that they can alleviate the effects of strong acid.
                                               Weakly basic, so that they can neutralize the excess stomach acid.
                                                Strongly basic so that they can make the stomach a basic environment
 
 

     Question 27    Lemon juice has a sour taste and turns litmus to red. Lemon juice is
 
 

                                                basic
                                               acidic
                                                neutral
                                                caustic
 
 

     Question 28    Ammonia is classified as a weak base in water. This means that it produces
 
 

                                                no hydroxide ions
                                                a relatively small fraction of the maximum number of hydroxide ions
                                                a relatively large fraction of the maximum number of hydroxide ions
                                                100% of the maximum number of hydroxide ions
 
 

     Question 29    The anion of an acid and the cation of a base form what?
 
 

                                                A complex
                                               A salt
                                                A buffer
                                                None of the above
 
 

     Question 30    Which of the following statements is not true concerning rain and acid rain?
 
 

                                                Rain with pH below 5.6 is called acid rain.
                                                A major source of the pollutants that cause acid rain is automobile exhaust fumes.

                                               Without pollution from humans, there would be no acid rain.
                                                Acid rain affects both air and water quality.
 
 

     Question 31    Which of the following substances would you predict to have the highest pH?
 
 

                                                Rainwater (thunderstorm)
                                                Blood
                                                Gastric juice
                                               Washing soda
 
 

     Question 32    A solution of toilet bowl cleaner has a pH of 1.0 The solution is
 
 

                                               strongly acidic
                                                weakly acidic
                                                strongly basic
                                                weakly basic
 
 

     Question 33    Which of the following is not a typical reaction involving acids and/or bases?
 
 

                                               Strong base + water -> acid anhydride
                                                Nonmetal oxide + water -> acid
                                                Metal oxide + water -> base
                                                Acid + base -> salt + water
 
 

     Question 34    All of the following are bases except
 
 

                                                KOH
                                               HNO3
                                                NH3
                                                Mg(OH)2
 
 

     Question 35    Sulfuric acid is the leading chemical produced and used industrially. What is the
                                            formula for sulfuric acid?
 
 

                                                SO4
                                                HSO4
                                                H2(SO)4
                                               H2SO4
 
 

     Question 36    A ruptured tank in Anywhere, USA spilled hydrochloric acid. Officials were reported to
                                            be "concerned that the acid might mix with sodium hydroxide - caustic soda - in a
                                            neighboring tank and form a toxic gas." What toxic gas would be formed?
 
 

                                                carbon dioxide
                                                chlorine
                                                chlorine dioxide
                                               none
 
 

     Question 37    Which one of the following is a correct definition of an acid that is not dependent upon
                                            the solvent?
 
 

                                                Acids produce hydronium ions
                                               Acids are proton donors
                                                Acids produce hydroxide ions
                                                Acids are proton acceptors
 
 

     Question 38       Which of the following acids is not considered strong?
 
 

                                                HCl
                                                HNO3
                                                H2SO4
                                               HCN
 
 

     Question 39    What acid is formed when SO3 is added to water?
 
 

                                                hydrosulfuric
                                                hydrosulfurous
                                               sulfuric
                                                sulfurous
 
 

     Question 40     What is the formula for calcium hydroxide?
 
 

                                                CaOH
                                                Ca2OH
                                                Ca(OH)2
                                                CaOH2
 
 

     Question 41    What does the term 'weak base" mean?
 
 

                                                0% ionized
                                               Partially ionized
                                                100% ionized
                                                None of the above
 
 

     Question 42    Sodium bicarbonate is the common name for what compound?
 
 

                                                sodium carbonate
                                                sodium carbide
                                               sodium hydrogen carbonate
                                                sodium bismuth carbonate
 
 

     Question 43    When metal oxides react with water the resulting solution is generally ____.
 
 

                                                salty
                                                acidic
                                                neutral
                                               basic