Problem 69
What is the \(\mathrm{pH}\) of solutions having the following \(\mathrm{OH}^{-}\) concentrations? Identify each as acidic, basic, or neutral. (a) \(\left[\mathrm{OH}^{-}\right]=1.0 \times 10^{-4} \mathrm{M}\) (b) \(\left[\mathrm{OH}^{-}\right]=1.0 \times 10^{-7} M\) (c) \(\left[\mathrm{OH}^{-}\right]=8.2 \times 10^{-10} \mathrm{M}\)
Problem 70
What is the \(\mathrm{pH}\) of solutions having the following \(\mathrm{OH}^{-}\) concentrations? Identify each as acidic, basic, or neutral. (a) \(\left[\mathrm{OH}^{-}\right]=6.4 \times 10^{-4} M\) (b) \(\left[\mathrm{OH}^{-}\right]=1.0 \mathrm{M}\) (c) \(\left[\mathrm{OH}^{-}\right]=2.7 \times 10^{-10} M\)
Problem 71
What is the \(\mathrm{pH}\) of the following solutions? Identify each as acidic, basic, or neutral. (a) \(0.010 \mathrm{M} \mathrm{HNO}_{3}\) (b) \(0.020 \mathrm{M} \mathrm{HClO}_{4}\) (c) \(0.015 \mathrm{M} \mathrm{NaOH}\)
Problem 72
What is the \(\mathrm{pH}\) of the following solutions? Identify each as acidic, basic, or neutral. (a) \(0.0010 \mathrm{M} \mathrm{KOH}\) (b) \(0.0050 \mathrm{M} \mathrm{NaOH}\) (c) \(0.0010 M \mathrm{HCl}\)
Problem 74
Complete the following table.$$ \begin{array}{|c|c|c|c|c|} \hline\left[\mathrm{H}_{3} \mathrm{O}^{+}\right] & {\left[\mathrm{OH}^{-}\right]} & \mathrm{pH} & \mathrm{pOH} & \begin{array}{c} \text { Acidic } \\ \text { or Basic? } \end{array} \\ \hline & & 0.40 & & \\ \hline & 9.0 \times 10^{-10} & & & \\ \hline 1.0 \times 10^{-8} & & & & \\ \hline & & & 2.00 & \\ \hline 4.5 \times 10^{-2} & & & & \\ \hline \end{array} $$
Problem 75
Determine the \(\mathrm{pH}\) and pOH of a \(0.0050 \mathrm{M} \mathrm{HCl}\) solution. What is the relationship between the \(\mathrm{pH}\) and pOH values?
Problem 76
Determine the \(\mathrm{pH}\) and pOH of a \(0.050 \mathrm{M} \mathrm{NaOH}\) solution. What is the relationship between the \(\mathrm{pH}\) and \(\mathrm{pOH}\) values?
Problem 77
Determine the \(\mathrm{H}_{3} \mathrm{O}^{+}\)concentration in solutions with each of the following \(\mathrm{pH}\) values. Identify each solution as acidic, basic, or neutral. (a) \(\mathrm{pH}=5.00\) (b) \(\mathrm{pH}=12.00\) (c) \(\mathrm{pH}=5.90\)
Problem 78
Determine the \(\mathrm{OH}^{-}\)concentration given the \(\mathrm{pH}\) of the following solutions. Identify each solution as acidic, basic, or neutral. (a) \(\mathrm{pH}=5.00\) (b) \(\mathrm{pH}=11.00\) (c) \(\mathrm{pH}=12.80\)
Problem 79
Determine the \(\mathrm{H}_{3} \mathrm{O}^{4}\) concentration in the following solutions. Identify each solution as acidic, basic, or neutral. (a) household ammonia, \(\mathrm{pH}=11.00\) (b) blood, \(\mathrm{pH}=7.40\) (c) lime juice, \(\mathrm{pH}=1.90\)
