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Timaktimak · Answer 1 · 2023-09-17T02:11:15+0000

Answer :

${ \bf\implies 17.99u}$

Explanation:

We know that water is the combination of two hydrogen atoms and one oxygen atoms.

To find atomic mass of water (
$\bf{H_2O}$ )

Atomic mass of Hydrogen × 2 + Atomic mass of oxygen × 1

We know that,

Atomic mass of Hydrogen = 1
Atomic mass of Oxygen = 15.99

$\mapsto$ 1 × 2 + 15.99 × 1

$\mapsto$ 2 + 15.99

$\mapsto$ 17.99u Ans.

Additional information :

Learn the Period table of Elements to solve this type of questions. It is very important. I attached the period table of elements. Learn it and you are able to solve it.

The formula for water is H₂O meaning there are 2 Hydrogen atoms and 1 oxygen. What-example-1

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