CHEM 116 ASU FINAL EXAM REVIEW LATEST 2026 UPDATED
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027)
GRADE: A+|STATUS: GUARANTEED PASS
what is the pH of a .250 M Ba(OH)2 solution? - Answers -13.698
at 50 degrees celsius and 1 atm, Kw=5.19x10^-14. calculate [H3O+] in .0090 M NaOH under
these conditions. - Answers -5.8x10^-12
which statement about a solution of the salt NH4CN is correct?
a- the solution is basic
b- the solution is neutral
c- the solution is acidic
d- the values of Ka and Kb for the species in solution must be known before a prediction can be
made. - Answers -d- the values of Ka and Kb for the species in solution must be known before a
prediction can be made.
bronsred-lowry acid-base conjugate pairs
according to the acid-conjugate base pairs, the conjugate base of nitric acid is:
a- weak
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, b- strong
c- negligible - Answers -negligble
a solution has a [H30+] of .00030 M. calculate [Oh-] - Answers -3.3x10^-11
what is the value of pKb for No2-? Ka for HNO2= 7.1x10^-4 - Answers -10.85
calculate the molar solubility of Ca(OH)2 is water, if Ksp=6.5x10^-6 - Answers -1.2x10^-2
citric acid has an acid dissociation constant Ka of 8.4x10^-4. A buffer made with this acid would
be most effective over the pH range of? - Answers -2.0-4.0
which of the following has the highest buffer capacity, aka the best buffer?
a- .10 M substance/.10 M of substance
b- .50 M substance/.10 M of substance
c- .10 M substance/.50 M of substance
d- .50 M substance/.50 M of substance - Answers -d- .50 M substance/.50 M of substance
which of the following substances has the best solubility in water?
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QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027)
GRADE: A+|STATUS: GUARANTEED PASS
what is the pH of a .250 M Ba(OH)2 solution? - Answers -13.698
at 50 degrees celsius and 1 atm, Kw=5.19x10^-14. calculate [H3O+] in .0090 M NaOH under
these conditions. - Answers -5.8x10^-12
which statement about a solution of the salt NH4CN is correct?
a- the solution is basic
b- the solution is neutral
c- the solution is acidic
d- the values of Ka and Kb for the species in solution must be known before a prediction can be
made. - Answers -d- the values of Ka and Kb for the species in solution must be known before a
prediction can be made.
bronsred-lowry acid-base conjugate pairs
according to the acid-conjugate base pairs, the conjugate base of nitric acid is:
a- weak
1|Page
, b- strong
c- negligible - Answers -negligble
a solution has a [H30+] of .00030 M. calculate [Oh-] - Answers -3.3x10^-11
what is the value of pKb for No2-? Ka for HNO2= 7.1x10^-4 - Answers -10.85
calculate the molar solubility of Ca(OH)2 is water, if Ksp=6.5x10^-6 - Answers -1.2x10^-2
citric acid has an acid dissociation constant Ka of 8.4x10^-4. A buffer made with this acid would
be most effective over the pH range of? - Answers -2.0-4.0
which of the following has the highest buffer capacity, aka the best buffer?
a- .10 M substance/.10 M of substance
b- .50 M substance/.10 M of substance
c- .10 M substance/.50 M of substance
d- .50 M substance/.50 M of substance - Answers -d- .50 M substance/.50 M of substance
which of the following substances has the best solubility in water?
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