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Two samples of HCl having 1M and 0.25 M are mixed. Find the volumes of these samples respectively taken in order to prepare 0.75 M HCl solution.A. 20 ml, 10 mlB. 100 ml, 50 mlC. 40 ml, 10 mlD. 20 ml, 40 ml |
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Answer» Correct Answer - A::B `0.75 = (1xx V_(1)+0.25xxV_(2))/(V_(1)+V_(2))` `0.75 = (V_(1))/(V_(2))=0.75 = (V_(1))/(V_(2))+0.25` `(V_(1))/(V_(2))(0.25)=0.5,(V_(1))/(V_(2))=(2)/(1)` |
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