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The heat of neutralization of (i) CHCl2 ...

The heat of neutralization of (i) `CHCl_2 – COOH` by NaOH is 12830 cal, (ii) HCl by NaOH is 13680 cal and (iii) `NH_4OH` by HCl is 12270 cal. What is the heat of neutralization of dichloro acetic acid by `NH_4OH`? Calculate the heats of ionization of dichloro acetic acid and `NH_4OH`.

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The correct Answer is:
(i) `-676 kcal mol^(-1)`
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