91Ó°ÊÓ

Pyridine, \(\mathrm{C}_{5} \mathrm{H}_{5} \mathrm{~N},\) is a weak base. Write a balanced chemical equation to represent why an aqueous solution of pyridine is basic.

Amantadine, \(\mathrm{C}_{10} \mathrm{H}_{15} \mathrm{NH}_{2}\), is a base used to treat Parkinson's disease. Write a balanced chemical equation to represent why an aqueous solution of amantadine is basic.

Pyruvic acid, \(\mathrm{CH}_{3} \mathrm{COCOOH},\) is produced during aerobic respiration. Write a balanced chemical equation to represent why an aqueous solution of pyruvic acid is acidic.

Formic acid, \(\mathrm{HCOOH}\), is found in ants. Write a balanced chemical equation to represent why an aqueous solution of formic acid is acidic.

Milk of magnesia, \(\mathrm{Mg}(\mathrm{OH})_{2}\), has a pH of 10.5. Calculate the hydronium ion concentration of the solution. Is this solution acidic or basic?

A sample of coffee has a pH of 4.3. Calculate the hydronium ion concentration in this coffee. Is the coffee acidic or basic?

Calculate the \(\mathrm{pH}\) of a solution that is \(0.025-\mathrm{M}\) in \(\mathrm{NaOH}\). Calculate the pOH of this solution.

Calculate the pH of a 0.0013-M solution of \(\mathrm{HNO}_{3} .\) Calculate the pOH of this solution.

The hydronium ion concentration of a cyanoacetic acid solution is \(0.032 \mathrm{M}\). Calculate its pOH.

A solution of benzyl amine, \(\mathrm{C}_{7} \mathrm{H}_{7} \mathrm{NH}_{2}\), has a hydroxide ion concentration of \(2.4 \times 10^{-3} \mathrm{M}\). Calculate the \(\mathrm{pH}\) of the solution. Calculate its \(\mathrm{pOH}\).