1.

The concentration of hydrogen ion in a sample of soft drink is 3.8 xx 10^(-3)M. what is its pH ?

Answer»

Solution :`[H^+]=[3.8xx10^(-2)]`M
pH=-log `(3.8xx10^(-2))`
`=-{log 3.8+ log 10^(3)}`
=-(0.5798+(-3)) =-(-2.4202) =+2.42
pH `LT` 7.0 So, the solution is acidic.


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