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What is the pH of a buffer that is \(0.200 M\) chloroacetic acid and \(0.100 M\) sodium chloroacetate at \(25^{\circ} \mathrm{C} ?\)

What is the pH of a buffer that is \(0.100 M\) methylamine and \(0.175 M\) methylammonium chloride at \(25^{\circ} \mathrm{C} ?\)

What is the pH of a buffer that is \(0.110 M \mathrm{HPO}_{4}^{2-}\) and \(0.220 \mathrm{M} \mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) at \(25^{\circ} \mathrm{C} ?\)

What is the pH of a buffer that is \(0.200 M \mathrm{H}_{2} \mathrm{SO}_{3}\) and \(0.250 \mathrm{M} \mathrm{NaHSO}_{3}\) at \(25^{\circ} \mathrm{C} ?\)

What is the mole ratio of ammonia to ammonium chloride in a buffer with a pH of \(9.00 ?\)

What masses of bromoacetic acid and sodium bromoacetate are needed to prepare \(1.00 \mathrm{L}\) of \(\mathrm{pH}=3.00\) buffer if the total concentration of the two components is \(0.200 M ?\)

What masses of acetic acid and sodium acetate are needed to prepare \(125 \mathrm{mL}\) of \(\mathrm{pH}=5.00\) buffer if the total concentration of the two components is \(0.500 M ?\)

What masses of dimethylamine and dimethylammonium chloride do you need to prepare \(0.500 \mathrm{L}\) of \(\mathrm{pH}=11.00\) buffer if the total concentration of the two components is \(0.300 M ?\)

What masses of ethylamine and ethylammonium chloride do you need to prepare \(1.00 \mathrm{L}\) of \(\mathrm{pH}=10.50\) buffer if the total concentration of the two components is \(0.250 M ?\)

What is the \(\mathrm{pH}\) at \(25^{\circ} \mathrm{C}\) of a solution that results from mixing equal volumes of \(0.05 M\) solution of ammonia and a \(0.025 M\) solution of hydrochloric acid?