Question

Calculate the relative
molecular mass of water (HO).
(b) Calculate the molecular mass of
HNO,​

Answer 1

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.

Feb 11, 2019

Answer 2

H=1u

O=16u

ATQ

Water contain 2 Hydrogen atoms

2 × 1u +16u =18u

So relative mass of water is 18u .