Homework Help: Chemistry

Posted by Linda on Wednesday, April 11, 2012 at 8:09am.

Which of the following is the most effective buffer system for a pH value of 7.45? Assume all are 1M

A. Carbonic acid and sodium bicarbonate
B. Sodium bicarbonate and sodium carbonate
C. Sodium dihydrogen phosphate and disodium hydrogen phosphate
D Hydrogen cyanide and sodium cyanide
E. Ammonia and ammonium chloride

Would you agree with C?

Chemistry - DrBob222, Wednesday, April 11, 2012 at 11:59am
yes. Are you guessing or do you know how to do this?

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