Question

What is the molecular mass of nitric acid? 

  1. 63 u
  2. 70 u
  3. 36 u
  4. 45 u
Answer (Detailed Solution Below)
Option a: 63 u

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The correct answer is 63 u

Mass of Hydrogen (H) = lu

Mass of Nitrogen (N) = 14u

Mass of Oxygen (0) = 16u

Molecular mass of HNO3 = (1x1)+(1×14)+(16×3)

=1+14+48

=63u

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