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The P^(H) of 10^(-8) M HCI is...

The `P^(H)` of `10^(-8)` M HCI is

A

8

B

6

C

7

D

`6.98`

Text Solution

Verified by Experts

The correct Answer is:
D
`[H^(+) ]_("total ") = 10 ^(-7) M+ 10 ^(8) M= 10 ^(-7) [1+ 0.1 ]`
` " " =1.1 xx 10 ^(-7) M `
`pH " " = - log _10 (1.1 xx 10 ^(-7)) `
` " "= 7- log ^(1.1) = 7 -0. 0 414 = 6. 96`
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