What is the concentration of a solution containing 20 g of salt in 180 g of water expressed as mass percentage?

Type: MCQ • Marks: 1

A. 10%

B. 25%

C. 20%

D. 11.1%

Explanation

Mass % = [20 / (20 + 180)] × 100 = [20 / 200] × 100 = 10%.

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Class 9th Science (MCQ)

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