What is the component concentration ratio, [Pr−]/[HPr], of a buffer that has a pH of 4.53? (Ka of HPr = 1.3 × 10−5)

What is the component concentration ratio, [Pr−]/[HPr], of a buffer that has a pH of 4.53?...
What is the component concentration ratio, [Pr−]/[HPr], of a buffer that has a pH of 4.57? (Ka of HPr = 1.3 × 10−5) Report your answer to 3 significant figures.
What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 8.02? (Ka of HBrO = 2.3 × 10−9)
What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 8.07? (Ka of HBrO = 2.3 × 10−9)
QUESTION 6 What is the buffer component ratio, (CH3CH2COO(CH3CH2COOH) of a propanoate buffer that has a pH of 4.77. Ka of CH3CH2COOH is 1.3 x 10-5. Enter your answer with three decimal places and no units.
What is the buffer component ratio, (NO2-)/(HNO2) of a nitrite buffer that has a pH of 2.69. Ka of HNO2 is 7.1 x 10-4.
What is the buffer component ratio, (NO2-)/(HNO2) of a nitrite buffer that has a pH of 2.96. Ka of HNO2 is 7.1 x 10-4.
1. What is the pH of a hypoiodous acid/sodium hypoiodite buffer in which the concentration of the weak acid component is 0.129 M and the concentration of the conjugate base is 0.102 M?Ka=2.3E-11. 2. The pH of a hypoiodous acid/sodium hypoiodite buffer in which the concentration of the weak acid component is 0.140 M and the concentration of the conjugate base is 0.070 M is 10.34. Suppose 0.128 g of solid NaOH are added to 100 mL of this buffer...
A buffer solution has pH=5 and pKa=5.3. a.What is the ratio of the weak acid concentration to its conjugate base that is needed to make a buffer of the given pH, [HA (aq)]/[A ̅ (aq)]? b.Propose what concentrations of acid and base you need to achieve that ratio?
A benzoic acid/potassium benzoate buffer solution has a pH = 4.25. The concentration of benzoic acid (C6H5COOH, Ka = 6.5 × 10-5) in the solution is 0.54 M. What is the concentration of potassium benzoate (KC6H5COO, Kb = 1.5 × 10-10) in this buffer solution?
A benzoic acid/potassium benzoate buffer solution has a pH = 4.25. The concentration of benzoic acid (C6H5COOH, Ka = 6.5 × 10-5) in the solution is 0.54 M. What is the concentration of potassium benzoate (KC6H5COO, Kb = 1.5 × 10-10) in this buffer solution?