Question

Calculate the PH of 0.0001 molar solution of NaOH​

Answer 1

Answer:

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10.0 (2) What is the pH of a 0.0001 M NaOH solution? SOLUTION: Strong base so, pOH = -log[NaOH] = -log(0.0004)=-log(1x10-4)=4.0 pH = 14.0-pOH = 14.0 – 4.0 = 10.0 .

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Answer 2

Given:

0.0001 molar solution of NaOH.

To find:

The pH of the solution.

Solution:

To determine the pH of the solution we have to use the below formula as follows-

We know that-

pOH=$-log[OH]^-$

The concentration of hydroxyl ion is 0.0001 M.

So, we can write-

pOH=$-log(0.0001)\\-(-4)\\4$

Hence the value of pOH is 4.

Again we know that pH+pOH=14.

Hence pH=14-4

pH=10.

Thus, the pH of the NaOH solution is 10.