A student measured 25ml of 0 2M hydrochloric acid into a conical flask and titrated with with sodium hydroxide.It was found that 15ml of the sodium hydroxide was needed to neutralise the acid.(a)write a balanced chemical equation for the reaction.(b)calculate the concentration of the sodium hydroxide solution.(c)calculate the ph of HCl when the concentration of the acid is 1.4×10^-5M.
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