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03-06-2022
Chemistry

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How many moles are in 8.35 g of H2O?
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Medunno13 Medunno13

23-06-2022

Answer: 0.463 mol (to 3 sf)

Explanation:

The atomic mass of hydrogen is 1.00794 g/mol.
The atomic mass of water is 15.9994 g/mol.

So, the mass of water is 2(1.00794)+15.9994 = 18.01528 g/mol.

This means that in 8.35 grams of water, there are:

8.35/18.01528, which is 0.463 mol (to 3 sf)

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