Chemistry

Chemistry

Problem

Calculate the pH of the following weak acids: a. 0.50 mol dm-3 phenol ( Ka=4.59×10−5K_a = 4.59 \times 10^{-5} ) b. 0.010 mol dm-3 fluoroethanoic acid ( pKa=2.59 \text{p}K_a = 2.59 ) c. 0.25 mol dm-3 nitric(III) acid, HNO2, ( pKa=3.16 \text{p}K_a = 3.16 )

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