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  • During an experiment the students were asked to prepare a 10% (Mass/Mass) solution of sugar in water. Ramesh dissolved 10 g of sugar in 100 g of water while Sarika prepared it by dissolving 10 g of sugar in water to make 100 g of the solution.

During an experiment the students were asked to prepare a 10\% (Mass/Mass) solution of sugar in water. Ramesh dissolved 10 g of sugar in 100 g of water while Sarika prepared it by dissolving 10 g of sugar in water to make 100 g of the solution
(a) Are the two solutions of the same concentration?
(b) Compare the mass \% of the two solutions.

Answers (1)

Solution:
Mass Percent: amount of solute in 100 gram of solution.
Mass percent(%) =\frac{massof Solute\times100}{massofSolution}
Ramesh’s Solution:
Mass percent(%) =\frac{10gram\times100}{10gram+100gram}=9.0909\%
Sarika’s Solution:
Mass percent(%) =\frac{10gram\times100}{100gram}=10\%
Part a: Sarika has higher mass percentage than Ramesh.
Part b: The mass percentage ratio of Sarika and Ramesh is 10: 9.0909

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