Q.

10 g of glucose are dissolved in 150 g of water. The mass percentage of glucose is :

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a

2.25%

b

6.25%

c

7.50%

d

2.22%

answer is B.

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Detailed Solution

Mass of glucose = 10 g ;Mass of water = 150 g∴ Total mass of glucose solution=10+150=160gMass percent = Mass of glucose  Mass of glucose solution ×100=10160=6.25%
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10 g of glucose are dissolved in 150 g of water. The mass percentage of glucose is :