HClO is a weak acid (Ka = 4.0

Expert Solution

NaClO + H+ <---------> HClO + OH-

I 0.053 0 0

E 0.053-x +x +x

Kb = [OH-][HClO] / [NaClO]

Kb = Kw / Ka = (1 x 10^-14) / (4.0 x 10^-8) = 2.5 x 10^-7

2.5 x 10^-7 = x^2 / (0.053 -x )

2.5 x 10^-7 = x^2 / (0.053) [x is neglected as it is a small value]

x^2 = 1.325 x 10^-8

x = 1.15 x 10^-4 M

[OH-] = x = 1.15 x 10^-4 M

pOH = -log[OH-] = -log [1.15 x 10^-4]

pOH = 3.93

pH = 14-pOH

pH = 14-3.93 = 10.06

pH = 10.06

queen_honey_blossom answered 1 year ago

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Question

HClO is a weak acid (Ka = 4.0

Solutions

Expert Solution

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