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07-12-2017
Chemistry

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What is the molar concentration of h3o+ in a cola that has a ph of 4.240?

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17-12-2017

The pH is calculated using the expression: pH = - log [H3O+].
To find the concentration of [H3O+]
[H3O+] = 10^(-pH)
Solving the RHS we have 10^(-4.240) = 0.1440
Hence the concentration of H3O+ is 0.1440.

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