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Equilibrium

Question
CBSEENCH11006540

The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.

Solution

We know,
    space space space space space space space space space space space pH space equals space minus log space open square brackets straight H to the power of plus close square brackets
or space space space log space open square brackets straight H to the power of plus close square brackets space equals space minus pH space equals space minus 3.76
therefore space space space space open square brackets straight H to the power of plus close square brackets space equals space antilog space left parenthesis negative 3.76 right parenthesis
space space space space space space space space space space space space space space space equals space antilog space left parenthesis negative 3 minus 0.76 plus 1 minus 1 right parenthesis
space space space space space space space space space space space space space space space equals space antilog space left parenthesis negative 4 plus 0.24 right parenthesis
space space space space space space space space space space space space space space space space equals space antilog space left parenthesis negative 4 plus 0.24 right parenthesis
space space space space space space space space space space space space space space space space equals space antilog space left parenthesis 4 with bar on top space.24 right parenthesis
space space space space space space space space space space space space space space space space equals space 1.7 space cross times space 10 to the power of negative 4 end exponent straight M space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space