2, 4-dinitrophenol ( ) acts as buffer and if pH of this buffer is adjusted to 5
CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
2, 4-dinitrophenol ( pKa=4 ) acts as buffer and if pH of this buffer is adjusted to 5, the ratio of concentration of dissociated and undissociated molecules of 2, 4-dinitrophenol is :
(1) 1
(2) 10
(3) 0.1
(4) 0.01