Question

Mass ratio
CO2, NO2, No3,
S02, NH4 step by step​

Answer 1

molar mass of carbon : 12

Molar mass of Oxygen : 16

Molar mass of Nitrogen : 14

Molar mass of sulphur : 32

Molar mass of hydrogen : 1

To find mass ratio of a molecule we need to know the individual molar mass of each element / atom in the molecule

for example molar mass of Co2

Here to form one molecule of CO2 one atom of carbon and 2 atoms of oxygen are combined

which means 12g of carbon is combined with (2×16)g of oxygen ( here 2 taken since 2 atoms of oxygen involved to form a molecule)

which means

12 g of carbon combine with 32g of Oxygen to form 44g of carbondioxide

mass ratio taken as Ratio of mass of carbon to mass of oxygen to form 1 mole of carbondioxide

Mass of carbon : Mass of Oxygen

12 : 32

then mass ratio of co2 is 3 : 8

similarly Mass ratio of No2 is 7 : 16

Mass ratio of No3 is 7 : 24

Mass ratio of So2 is 1 : 1

Mass ratio of NH4 is 7: 2

Hope it was helful