Question

write the formula and molecular mass of methane , carbon dioxide and hydrogen sulphite

Answer 1

Methane= CH4
carbon dioxide= CO2
hydrogen sulphide= H2S







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Answer 2

For Carbon dioxide

Formula: CO2

Molecular mass: 12+2×16
=11+32
=43

For Methane

Formula: CH4

Molecular mass: 12+1×4
=12+4
=16

For Hydrogen Sulphide

Formula: H2S

Molecular mass: 1×2+32
=2+32
=34