1.

Hydroxyl ion concentartion of 1 M HCI is

Answer»

`1 xx 10^(1) mol` `dm^(-3)`
`1 xx 10^(-13) mol` `dm^(-3)`
`1 xx 10^(-1) mol` `dm^(-3)`
`1 xx 10^(-14) mol` `dm^(-3)`

Solution :1 M HCI, CONC. Of `H^(+) = 1 "mol"/dm^(3)`
Now `K_(w) = [H^(+)][OH^(-)]`
i.e `10^(-14) = 1 xx [OH^(-)]`
`THEREFORE [OH^(-)] = 1 xx 10^(-14)` mol/`dm^(3)`


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