Naproxen is an anti-inflammatory drug that is a weak acid with a pKa value of 4.2
C. Calculate the pH of an aqueous solution of 0.0010 M naproxen

Question

Naproxen is an anti-inflammatory drug that is a weak acid with a pKa value of 4.2
C. Calculate the pH of an aqueous solution of 0.0010 M naproxen

Bobby · Accepted Answer

pKa = 4.2

Ka = 10 ^-4.2 = 6.31* 10 ^-5

[H] = SQRT(Ka *c) = SQRT(6.31* 10 ^-5* 0.0010) = 2.51E-04

pH = 3.6

Naproxen is an anti-inflammatory drug that is a weak acid with a pKa value of 4.2 C. Calculate the pH?