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Question: > The molar mass of normal water is .......... as compared to heavy water....

The molar mass of normal water is .......... as compared to heavy water.

A

10% less

B

10% high

C

2% less

D

zero% less

Answer

10% less

Explanation

Solution

(1)

Molar mass of normal water = 18, molar mass of heavy water = 20

∴\therefore % = 20−1820\frac{20 - 18}{20} × 100 = 10%

Molar mass of normal water is 10% less than heavy water.