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Calculate the pH of 0.04 M HNO3 Solution...

Calculate the pH of 0.04 M `HNO_3` Solution.

Text Solution

Verified by Experts

Concentration of `HNO_(3) = 0.4` M
`[H_(3)O^(+)] = 0.04 "mol dm"^(-3)`
`pH = - log [H_(3) O^(+)]`
`=- log (0.04)`
`=- log (4 xx 10^(-2))`
`= 2 - log 4 = 2 - 0.6021`
`= 1.397 = 1.40`
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