# Quick Please! A buffer solution composed of butyric acid and sodium butyrate has a pH of...

A buffer solution composed of butyric acid and sodium butyrate has a pH of 5.0. After the buffer solution is diluted 10-fold with water, what is the pH of the resulting solution? O pH = 4.0 pH = 6.0 pH = 5.0

Let initial volume is 1 liter.

pH = 5

So, [H+] = 10^(-pH) = 10^(-5) = 10^-5 M

After adding water 10 folded, volume = 1*10 = 10 liters

So, new [H+] = moles/new volume = 10^-5 / 10 = 10^-6 M

So, new pH = - log [H+] = - log [10^-6] = 6

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