Question

calculate the the relative molecular mass of water (H2O).​

Answer 1

Answer:

Answer

For H2O molecule -

Relative mass of hydrogen (H) = 1u.

Relative mass of oxygen (O) = 16u.

According to the formula of water contains 2 hydrogen atoms,

5.So, relative mass of water = 2 *( 1u ) + 16u. = 18u.

6.So, Relative mass of water = 18u.

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Answer 2

Explanation:

Here is your answer.

Atomic weight is 18 a.m.u.

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