Chapter 14

For each strong acid solution, determine \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right],\left[\mathrm{OH}^{-}\right]\), and \(\mathrm{pH}\). (a) \(0.0088 \mathrm{M} \mathrm{HClO}_{4}\) (b) \(1.5 \times 10^{-3} \mathrm{M} \mathrm{HBr}\) (c) \(9.77 \times 10^{-4} \mathrm{MHI}\) (d) \(0.0878 \mathrm{M} \mathrm{HNO}_{3}\)

For each strong base solution, determine \(\left[\mathrm{OH}^{-}\right],\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\), \(\mathrm{pH}\), and \(\mathrm{pOH}\). (a) \(0.15 \mathrm{M} \mathrm{NaOH}\) (b) \(1.5 \times 10^{-3} \mathrm{M} \mathrm{Ca}(\mathrm{OH})_{2}\) (c) \(4.8 \times 10^{-4} \mathrm{M} \mathrm{Sr}(\mathrm{OH})_{2}\) (d) \(8.7 \times 10^{-5} \mathrm{M} \mathrm{KOH}\)

What is the \(\mathrm{pH}\) of a solution formed by mixing \(125.0 \mathrm{~mL}\) of \(0.0250 \mathrm{M} \mathrm{HCl}\) with \(75.0 \mathrm{~mL}\) of \(0.0500 \mathrm{M} \mathrm{NaOH}\) ?

What is the \(\mathrm{pH}\) of a solution formed by mixing \(175.0 \mathrm{~mL}\) of \(0.0880 \mathrm{M}\) HI with \(125.0 \mathrm{~mL}\) of \(0.0570 \mathrm{M} \mathrm{KOH}\) ?

Acid rain over the Great Lakes has a pH of about 4.5. Calculate the \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)of this rain and compare that value to the \(\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\)of rain over the West Coast that has a \(\mathrm{pH}\) of 5.4. How many times more concentrated is the acid in rain over the Great Lakes?