MCAT Question A Day - 4/8/14
A student wishes to prepare a buffer whose pH is 6.3, using an acid HA with a pKa of 6.0. Which expression below will correctly express the ratio R of HA to NaA that must be mixed in order to achieve the desired pH?
A. 6.3 = 6.0 + log R
B. 6.0 = 6.3 + log R
C. 10-6.3 = 10-6.0 + log R
