1.

b) Calculate the concentration of hydrogen ion in moles per litre of a solution whose pH is 5.4

Answer»

Solution :(b) PH of the solution `=5.4`
`[H_3 O^+]=` ANTILOG of `(-pH)`
= antilog of `(-5.4)`
= antilog of `(-6+0.6)=BAR(6).6`
`=3.981xx10^(-6)`
i.e, `3.98xx10^(-6) xx10^(-6)"MOL dm"^-3`


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