Chemistry
Grade-9
Easy
Question
What is the mass of one molecule of nitrous acid?
- 63amu
- 62amu
- 60amu
- 61 amu
Hint:
The chemical formula of nitrous acid is HNO2.
The correct answer is: 63amu
The chemical formula of nitrous acid is HNO2.
Molecular mass of nitrous acid = (1+ 14 + 32) amu = 47amu
Atomic mass of hydrogen, nitrogen and oxygen are 1, 14, 16 respectively.
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