Question

Calculate the gram molecular mass i)H²0
ii) CO​

Answer 1

Answer:

i) 18g/mol

ii) 44g/mol

Explanation:

Molar mass of water (H2 O)  

Atomic mass of H=1

Atomic mass of O=16

H2 O=2×H+1×O

Molar mass of water=2×1+16=18g/mol

Molar mass of carbon dioxide (CO2 )

Atomic mass of C=12

Atomic mass of O=16

CO2 =1×C+2×O

Molar mass of CO2 =12+2×16=44g/mol