Hydrogen ion concentration of a solution is 2.5xx10^(-4)"mol "dm^(-3)" at "25^(@)C. Calculate its OH^(-) ion concentration.

Hydrogen ion concentration of a solution is 2.5xx10^(-4)"mol "dm^(-3)"

1.	Hydrogen ion concentration of a solution is 2.5xx10^(-4)"mol "dm^(-3)" at "25^(@)C. Calculate its OH^(-) ion concentration.
Answer» Solution :We know that `[H_(3)O^(+)][OH^(-)]=10^(-14)" at "25^(@)C` `therefore[OH^(-)]=(10^(-4))/([H_(3)O^(+)])=(10^(-14))/(2.5xx10^(-4))=4xx10^(-11)"MOL"//dm^(3)`