Question

Calculate the ph of 10^-8M NaOH solution

Answer 1

ph =log 10 to the base 1/10^-8
ph=log 10 to the base 10^8
ph=8 log 10 to the base 10
ph =8*1=8. .(log 10 to the base 10 =1)
hence ph of Noah solution will be 8.
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Answer 2

Answer: The pH of the solution is 6

Explanation:

1 mole of NaOH produces 1 mole of sodium ions and 1 mole of hydroxide ions.

To calculate the pH of the solution, we need to determine pOH of the solution. To calculate pOH of the solution, we use the equation:

$pOH=-\log[OH^-]$

We are given:

$[OH^-]=10^{-8}M$

Putting values in above equation, we get:

$pOH=-\log(10^{-8})\\\\pOH=8$

To calculate pH of the solution, we use the equation:

$pH+pOH=14\\pH=14-8=6$

Hence, the pH of the solution is 6