Chemistry
Grade-8
Easy
Question
The molecular mass of CO2 molecule will be?
- Atomic mass of carbon, and oxygen atoms
- Atomic mass of carbon and nitrogen atoms
- Atomic mass of carbon and twice the atomic mass of oxygen
- Molecular mass of CO
Hint:
Molecular mass is the sum of the atomic mass of individual atoms.
The correct answer is: Atomic mass of carbon and twice the atomic mass of oxygen
The molecular mass of CO2 = atomic mass of Carbon and atomic mass of 2 atoms of oxygen
=(1x12)+(2x16)
=12+32
=44u
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