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How many molecules are in 3.01 g of H2O

A. 0.167 molecules
B. 54.18 molecules
C. 1.01x10^23 molecules
D. 6.022x10^23

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Answer:

Option C

Explanation:

No. of Molecules=(Given Weight/Molar weight)*Avagadro No.

Given weight of H2O=3.01g

Molar weight of H2O=18g

On applying the formula, we get:

No. of Molecules=(3.01/18)*6.023*10²³=1.01*10²³

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