I want ans for this experts plzz

I want ans for this experts plzz WORKSHEET-2 DATE: 21.122017 sclENCE IS MATTER AROUND US PURE STD:IX I. During an experiment the students were asked to prepare (mass/mass) solution of sugar in water. Ramesh g dissolved log of sugar in I oog of water while Sarika prepared itby dissolving I Og Ofsugar in water to make solution. Find out whether the two solutions are same in concentration. Compare the mass pertentage Ofthe 2 solutions. 2. TO make a saturated solution , 36K Of sodium chloride is dissolved 100g Of water at 295K Find its concentration at this temperature. 3. A. Calculate the solubility of the solute at 293 K, when a saturated solution is prepared by dissolving 3g Of solute in 30g Of water B. Calculate the volume by volume percentage Of a solution Of 15m' Of ethyl alcohol in 60ml of gasoline. 4. How much witt be required to prepare aqueous salt solution by adding I Og of common salt? 5. The teacher instructed three students A, B and C respectively to prepare 50% (mass by volume ) solution of Sodium Hydroxide. A dissolved 50 g of NaOH in 100 ml of water, B dissolved 50 g of NaOH in 100g of water while C dissolved 50g Of NaOH in water to make 100ml of solution. Which one Of them has made the desiæå solution and Why?

Dear Student,

1. No, the concentration of the two solutions are different.Mass % =Mass of soluteMass of solution×100Mass of solution=Mass of solute + Mass of solventFor Ramesh :Mass %=1010+100×100=10110×100=9.09%For Sarika : Mass %=10100×100=10%2. Concentration can be expressed in mass %Mass % =Mass of soluteMass of solution×100Mass of solution=Mass of solute + Mass of solventSo, Mass %=36100+36×100=26.47% (mass/mass)Kindly ask the remaining query in the next thread.

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