B) Choose the correct alternative. Jugal takes two beakers. In the first beaker, he takes 2 g of common salt and in the second beaker, he takes 5 mL of milk. He adds 50 mL of water to these beakers and stirs the materials well. He then sets up two separate filtration assembly using conical flask, funnel and filter paper. He carries out filtration. Which of the following observation is correct? (A) Components of the mixture in the first beaker can be separated by filtration. (B) Components of the mixture in the second beaker can be separated by filtration. (C) Components of both the mixtures can be separated by filtration. (D) Components beth the mixtures cannot be separated by filtration.
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Answered by
1
Answer:
(d) option is correct answer.
Answered by
0
Answer:
The molar masses of glucose and urea are 180 g/mol and 60 g/mol respectively.
The number of moles of urea are
60
12
=0.2
The number of moles of glucose are
180
18
=0.1
When equilibrium is achieved, the mass (196.2 g) of glucose solution will reduce by x g and the mass of urea (152.4 g) will increase by x g. Due to this, the concentration (ratio of number of moles of solute to the mass of solution) of urea solution will become equal to the concentration of glucose solution.
152.4+x
0.2
=
196.2−x
0.1
152.4+x=392.4−2x
3x=240
x=80
Total mass of glucose solution =196.2−80=116.2 g
weight percent of glucose =
116.2
18
×100=15.5 %
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