KVPY SA Exam 05-Nov-2017 Question Paper

Question : 78 of 80

Marks: +1, -0

The concentration of OH

^{–}

ions in a solution with the H

^{+}

ions concentration of 1.3 × 10

^{–4}

M is

Solution:

[H^{+}] [OH^{–}] = 10^{–14}

1.3 × 10^{–4} × [OH] = 10^{–14}

[OH^{–}]=1/1.3×10^{-10}

= 0.769 × 10^{–10}

= 7.7 × 10^{–11}

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