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The hydrogen ion concentration of a 10^(...

The hydrogen ion concentration of a `10^(-8) M HCl` aqueous solution at `298 K(K_(w)=10^(-14))` is
(a)`1.0xx10^(-6)M`
(b)`1.0525xx10^(-7)M`
(c)`9.525xx10^(-8)M`
(d)`1.0xx10^(-8)M`

A

`1.0 × 10^(–6) M`

B

`1.0525 × 10^(–7) M`

C

`9.525 × 10^(–8) M`

D

`1.0 × 10^(–8) M`

Text Solution

Verified by Experts

The correct Answer is:
B
`[H^(+)]=10^(-8)+10^(-7) M`
`=10^(-7)[0.1+1]M`
`=1.1xx10^(-7)M`
` = 1.1xx10^(-7)M`
`~=1.0525xx10^(-7)M`
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