Question

Find the ratio by mass of the combining elements in the compound NH3

Answer 1

1 mole NH3 has one mole nitrogen and 3 mole hydrogen.

1 mole nitrogen is 14 grams.
3 mole hydrogen is 3 grams.

So ratio is 14:3 .

Thanks.
Tripathy.

Answer 2

Hello!!

NH3 :
Molar mass of nitrogen = 14 g
Molar mass of hydrogen = 1 g but there is 3 moles of hydrogen so mass will becomes 3 g

Ratio by mass = 14 : 3

hope it helps