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InterviewSolution
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Calculate the `pH` of solution obtained by mixing `10 ml` of `0.1 M HCl` and `40 ml` of `0.2 M H_(2)SO_(4)` |
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Answer» Correct Answer - D Milli equivalent of `H^(o+)` from `HC1 = 10 xx 0.1 = 1` Milli equivalent of `H^(o+)` from `H_(2)SO_(4) = 40 xx 0.2 xx2 = 16` `:.` Total `mEq` of `H^(o+)` in solution `= 1 + 16 = 17` `:. [H^(o+)] = (17)/(50) = 3.4 xx 10^(-1) (because [H^(o+)] = (mEq)/(V_("in mL")))` `:. pH =- log [H^(o+)] =- log (0.34)` `pH = 0.4685` |
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