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Mobile App Problem 59
Determine \(\left[\mathrm{OH}^{-}\right]\)in each base solution. If the acid is weak, indicate the value that \(\left[\mathrm{OH}^{-}\right]\)is less than. (a) \(0.25 \mathrm{M} \mathrm{NaOH}\) (b) \(0.25 \mathrm{MNH}_{3}\) (c) \(0.25 \mathrm{M} \mathrm{Sr}(\mathrm{OH})_{2}\) (d) \(1.25 \mathrm{M} \mathrm{KOH}\)
Problem 60
Determine \(\left[\mathrm{OH}^{-}\right]\)in each base solution. If the acid is weak, indicate the value that \(\left[\mathrm{OH}^{-}\right]\)is less than. (a) \(2.5 \mathrm{M} \mathrm{KOH}\) (b) \(1.95 \mathrm{M} \mathrm{NH}_{3}\) (c) \(0.225 \mathrm{M} \mathrm{Ba}(\mathrm{OH})_{2}\) (d) \(1.8 \mathrm{MC}_{5} \mathrm{H}_{5} \mathrm{~N}\)
Problem 61
Determine if each solution is acidic, basic, or neutral. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-5} \mathrm{M}\); \(\left[\mathrm{OH}^{-}\right]=1 \times 10^{-9} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-6} \mathrm{M}\); \(\left[\mathrm{OH}^{-}\right]=1 \times 10^{-8} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-7} \mathrm{M} ;\left[\mathrm{OH}^{-}\right]=1 \times 10^{-7} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-8} \mathrm{M}\); \(\left[\mathrm{OH}^{-}\right]=1 \times 10^{-6} \mathrm{M}\)
Problem 62
Determine if each solution is acidic, basic, or neutral. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-9} \mathrm{M} ;\left[\mathrm{OH}^{-}\right]=1 \times 10^{-5} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-10} \mathrm{M} ;\left[\mathrm{OH}^{-}\right]=1 \times 10^{-4} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-2} \mathrm{M}\); [ \(\left.\mathrm{OH}^{-}\right]=1 \times 10^{-12} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-13} \mathrm{M} ;\left[\mathrm{OH}^{-}\right]=1 \times 10^{-1} \mathrm{M}\)
Problem 63
Calculate \(\left[\mathrm{OH}^{-}\right]\)given \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)in each aqueous solution and classify the solution as acidic or basic. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1.5 \times 10^{-9} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=9.3 \times 10^{-9} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=2.2 \times 10^{-6} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=7.4 \times 10^{-4} \mathrm{M}\)
Problem 64
Calculate \(\left[\mathrm{OH}^{-}\right]\)given \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)in each aqueous solution and classify the solution as acidic or basic. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1.3 \times 10^{-3} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=9.1 \times 10^{-12} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=5.2 \times 10^{-4} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=6.1 \times 10^{-9} \mathrm{M}\)
Problem 65
Calculate \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)given \(\left[\mathrm{OH}^{-}\right]\)in each aqueous solution and classify each solution as acidic or basic. (a) \(\left[\mathrm{OH}^{-}\right]=2.7 \times 10^{-12} \mathrm{M}\) (b) \(\left[\mathrm{OH}^{-}\right]=2.5 \times 10^{-2} \mathrm{M}\) (c) \(\left[\mathrm{OH}^{-}\right]=1.1 \times 10^{-10} \mathrm{M}\) (d) \(\left[\mathrm{OH}^{-}\right]=3.3 \times 10^{-4} \mathrm{M}\)
Problem 66
Calculate \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)given \(\left[\mathrm{OH}^{-}\right]\)in each aqueous solution and classify each solution as acidic or basic. (a) \(\left[\mathrm{OH}^{-}\right]=2.1 \times 10^{-11} \mathrm{M}\) (b) \(\left[\mathrm{OH}^{-}\right]=7.5 \times 10^{-9} \mathrm{M}\) (c) \(\left[\mathrm{OH}^{-}\right]=2.1 \times 10^{-4} \mathrm{M}\) (d) \(\left[\mathrm{OH}^{-}\right]=1.0 \times 10^{-2} \mathrm{M}\)
Problem 69
Calculate the \(\mathrm{pH}\) of each solution. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1.7 \times 10^{-8} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1.0 \times 10^{-7} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=2.2 \times 10^{-6} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=7.4 \times 10^{-4} \mathrm{M}\)
Problem 70
Calculate the \(\mathrm{pH}\) of each solution. (a) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=2.4 \times 10^{-10} \mathrm{M}\) (b) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=7.6 \times 10^{-2} \mathrm{M}\) (c) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=9.2 \times 10^{-13} \mathrm{M}\) (d) \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=3.4 \times 10^{-5} \mathrm{M}\)
