Question

What is the molecular mass of 1)H2O 2)O2​

Answer 1

Explanation:

Molar mass of water (H20)

Atomic mass of H=1

Atomic mass of O=1

H2O=2×H+1×O

Molar mass of water=2×1+16=18g/mol

(ii) Molar mass of carbon dioxide (CO2)

Atomic mass of C=12

Atomic mass of H=1

CO2=1×C+2×O

Molar mass of CO2=12+2×16=44g/mol

PLEASE mark as brainliest and rate it too!