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Find the pH of a solution prepared by mixing 25ml of a 0.5M solution of HCI,10ml of a 0.5M solution of NaOH and 15 ml of water :-A. 4B. 3C. 0. 82D. 0. 10 |
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Answer» Correct Answer - C meq of HCI`=0.5xx25=12.5` meq of `NaOH=0.5xx10=5` remaning of HCI in mixture =7.5 Total volume `=25+10+15=50 mL` `[H^(+)]=(7.5)/(50)` pH = log `(7.5)/(50)=0.82` |
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