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?
yes. Are you guessing or do you know how to do this?posted by DrBob222