A buffer is to be prepared at pH 8.00 using a weak acid whose is 7.21
CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
A buffer is to be prepared at pH 8.00 using a weak acid whose pKa is 7.21. What is the required value of the ratio [HA][A−]?
(a) 2.2
(b) 0.16
(c) 6.2
(d) 0.79