. Calculate the molar mass of the followings
A. H2O
B. CO2
C. CH4
Best Answer
Solution:
A. H2O
Atomic mass of H=1
Atomic mass of O=16
SO, H20 = 2 x H + 1 x O
molar mass of H20 = 2 x 1 + 16 = 18g/mol
B.CO2
Atomic mass of C=12
Atomic mass of O=16
so, CO2=1×C+2×O
Molar mass of CO2=12+2×16=44g/mol
c. CH4
Atomic mass of C=12
Atomic mass of H=1
CH4=1×C+4×H
Molar mass of methane=12+4×1=16g/mol
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