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Answer:
4. a) No, both are different. b) Ramesh- 9.9% Sarika - 10%
According to the solution prepared by Ramesh,
Mass of sugar he took (Solute) = 10 g
Mass of water he took (Solvent) = 100 g
mass of solute mass of solution Thus
Mass % of the solution %3D 10 100 x 100 9.9% 110 11 According to the solution prepared by Sarika
, Mass of sugar she took (Solute) = 10 g
Mass of Solution she took = 100 g Thus Mass % of the solution = mass of solute mass of solution 10 x 100 = 10% 100
5. As given in the question,
Volume of solute = 25 ml
Volume of Solvent = 150 ml
Volume of Solution = Volume of Solute + %3D Volume of Solvent = 25 ml + 150 ml = 175 ml Volume by Volume percentage = Volume of Solute/ Volume of Solution * 100 = 25 * 100 / 175 = 14.28
6. water should be mixed with 12 mL of alcohol so as to obtain 12% alcohol solution? Hence, 88 ml of water will be added to 12 ml of alcohol in order to prepare a concentration 12%.
Explanation:
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