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Buffer

Q. You need to prepare 100.0 mL of a pH = 4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and 0.200 M sodium benzoate. How much of each solution should be mixed to prepare this buffer?

Solved • Mar 24, 2019

Buffer

Q. a. Calculate the pH of a 1L buffer solution that contains 0.1M HC2H3O2 and 0.1 M NaC2H3O2. Ka = 1.8 x 10-5 b. To the buffer solution 0.010 mol of NaOH was added. Calculate the pH.

Solved • Mar 24, 2019

Buffer

Q. Calculate the pH of a 1 L buffer solution that contains 0.1 M HC2H3O2 and 0.1 M NaC2H3O2. Ka = 1.8 × 10–5

Solved • Mar 24, 2019

Buffer

Q. For part C, I don't know how to approach this part and I don't understand the textbook's explanation as to why they did what they did to get the molarity.

Solved • Mar 24, 2019

Buffer

Q. Calculate the pH of a solution 0.145 M with respect to CH3CH2COOH and 0.115 M with respect to K+CH3CH2COO–. Ka = 1.3 x 10 – 5, pKa = 4.89

Solved • Mar 24, 2019

Buffer

Q. Which pairs can be used to make a buffer? (Check all that apply) A. Ca(Propionate)/Ca(OH)2 B. Lactic acid/Sodium lactate C. Acetic acid/Potassium acetate D. HCl/NaOH

Solved • Mar 22, 2019

Buffer

Q. Fatima adds 0.1 moles of HCl to a buffer mixture containing 1.0 mole of NaF and 1.0 mole of HF in 1.0 L of water at 298 K. Which component of the buffer mixture does the HCl react with?

Solved • Mar 17, 2019