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Determine the pH of the solution that re...

Determine the pH of the solution that results from the addition of 20.00 mL of 0.01 M Ca `(OH)_(2)` to 30.00 mL of 0.01 M HCI

A

`11.30`

B

`10.53`

C

`2.70`

D

`8.35`

Text Solution

Verified by Experts

The correct Answer is:
A
Milimoles of `H^(+) = 30 xx 0.01 = 0.3`
Milimoles of `OH^(-) = 20 xx 0.01 xx 2 = 0.4`
`[OH^(-)]= (0.1)/50 or 2 xx 10^(-3)`
So , pOH = `2.6999 rArr pH = 2.6999 = 11.30 `
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