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214.2 gm of aquous solution of sugar which contains 34.2 gm sugar calculate the mass of solution

214.2 gm of aquous solution of sugar which contains 34.2 gm sugar calculate the mass of solution

Grade:12

1 Answers

Arun
25750 Points
5 years ago
(i) Weight of sugar syrup = 214.2 g
Weight of sugar in the syrup = 34.2 g
∴ Weight of water in the syrup = 214.2 – 34.2 = 180.0 g
Mol. wt. of sugar, C12H22O11 = 342
∴Molal concentration = 34.2 *1000/342 *180 = 0.56
(ii) Mol. wt. water, H2O = 18
∴ Mole fraction of sugar = 34.2/342 /180/18+34.2/342
= 0.1/10+0.1 = 0.1/10.1 = 0.0099

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