What mass in grams of potassium fluoride is needed to make 150.0 mL of a 0.450 M hydrofluoric acid/fluoride buffer with a pH of 4.25 from 1.25 M HF and solid potassium fluoride? The Ka for HF is 6.8×10–4.
What mass in grams of potassium fluoride is needed to make 150.0 mL of a 0.450 M hydrofluoric acid/fluoride buffer with a pH of 4.25 from 1.25 M HF and solid potassium fluoride? The Ka for HF is 6.8×10–4.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 30QAP: A buffer is made up of 239 mL of 0.187 M potassium hydrogen tartrate (KHC4H4O6) and 137 mL of 0.288...
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What mass in grams of potassium fluoride is needed to make 150.0 mL of a 0.450 M hydrofluoric acid/fluoride buffer with a pH of 4.25 from 1.25 M HF and solid potassium fluoride? The Ka for HF is 6.8×10–4.
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