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550 2. A solution is prepared by dissolving 5 g of urea in 95 g of water. Calculate the mass by mass percentage of urea in solution |
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Answer» :-Mass by mass PERCENTAGE of urea in the SOLUTION is 5 % .EXPLANATION :-We have :-→ Mass of urea = 5 g→ Mass of water = 95 g________________________________Here, urea is the solute and water is solvent. In order to find required concentration, FIRSTLY we have to calculate total mass of the solution .Mass of solution :-= Mass of solute + Mass of solvent= (5 + 95) g= 100 gConcentration (mass/mass %) :-= Mass of solute/Mass of solute × 100= 5/100 × 100= 500/100= 5 % |
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