1.

An acid solution of pH = 6 is diluted 1000 times, the pH of the final solution becomes :

Answer»

between 5 and 6
between 6 and 7
between 10 and 11
between 7 and 8

Solution :`[OH^(-)]=10^(-6)XX(1)/(100)+10^(-7)=10^(-8)+10^(-7)`
`=1.1xx10^(-7)`
`pOH=-LOG[OH^(-)]=-log(1.1xx10^(-7))`
`=6.96`
`pH=14-6.96=7.04`


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