NCERT Class XII Chemistry <br> Chapter - Solutions <br> Questions with Solutions

NCERT Class XII Chemistry
Chapter - Solutions
Questions with Solutions

Question : 28

Total: 53

Calculate the mass percentage of aspirin (C9H8O4) in acetonitrile (CH3‌CN) when 6.5 of C9H8O4 is dissolved in 450 g of CH3‌CN.

Solution:

Given, Mass of aspirin = 6.5 g , Mass of acetonitrile = 450 g

Mass‌percent‌of‌aspirin =

‌Mass‌of‌aspirin

‌Mass‌of‌aspirin+ ‌Mass‌of‌acetonitrile

×100

6.5

6.5+450

×100=1.424%

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