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A solution is made by dissoving 40.5 g of C_(2)H_(5)OH until the total volume of the solution is 100 mL. What is the percentage volume of C_(2)H_(5)OH? The density of pure C_(2)H_(5)OH is 0.78 g/mL. |
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Answer» `"DENSITY of "C_(2)H_(5)OH=0.78 g//ML.` `"Intial volume of solution "="Mass"/"Density"=((40.5g))/((0.78g//mL))=51.92 mL` Final volueme of solution = 100 mL `"PRECENTAGE volume of "C_(2)H_(5)OH=("Intial volume")/("Final volume")XX100=((51.92mL))/((100mL))xx100=51.92%` |
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