If `pK_(b)` for fluoride ion at `25^(@)C` is `10.83`, the ionization constant of hydrofluroic acid in water at this temparature isA. `1.74xx10^(-5)`B. `3.52xx10^(-3)`C. `6.95xx10^(-4)`D. `5.38xx10^(-2)`

If `pK_(b)` for fluoride ion at `25^(@)C` is `10.83`, the ionization c

1.	If `pK_(b)` for fluoride ion at `25^(@)C` is `10.83`, the ionization constant of hydrofluroic acid in water at this temparature isA. `1.74xx10^(-5)`B. `3.52xx10^(-3)`C. `6.95xx10^(-4)`D. `5.38xx10^(-2)`
Answer» Correct Answer - C `{:(HF+H_(2)O,hArr,F^(+)+H_(3)O^(+)),(K_(a)xxK_(b)=k_(w),,pK_(a)+pK_(b)=pK_(w)):}` `pK_(a)=14-10.83 implies pK_(a)=3.17` `K_(a)=6.75xx10^(-4)`

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If `pK_(b)` for fluoride ion at `25^(@)C` is `10.83`, the ionization constant of hydrofluroic acid in water at this temparature isA. `1.74xx10^(-5)`B. `3.52xx10^(-3)`C. `6.95xx10^(-4)`D. `5.38xx10^(-2)`

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