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What is the pH of a buffer that has equal volumes of 0.2 moldm3 boric acid and 0.25 moldm³ potassium borate? (Ka for bor
Posted: Sat Jul 02, 2022 7:56 pm
by answerhappygod
- What Is The Ph Of A Buffer That Has Equal Volumes Of 0 2 Moldm3 Boric Acid And 0 25 Moldm Potassium Borate Ka For Bor 1 (368.51 KiB) Viewed 22 times
What is the pH of a buffer that has equal volumes of 0.2 moldm3 boric acid and 0.25 moldm³ potassium borate? (Ka for boric acid = 5.8 x 10-10) Report your answer to 2 decimal places. DO NOT include units. Answer: Calculate the volumes of conjugate base and acid needed to prepare 500 cm³ of a buffer that has a pH of 7.8 (Ka of the acid is 6.5 x 10-8). Assume that the
solutions of acid and conjugate base have equal concentrations. Report your answer as whole numbers separated by a comma. DO NOT include units or any spaces. E.g. 50,50 Answer: