Calculate the molar mass of Nitric acid (HNO3). Atomic mass of H=1U, N=14u, O=16u


The molar mass of the chemical substance is equal to the sum of the atomic mass of the individual atoms. The smallest unit of a compound is molar mass, which is one-twelfth of the mass of one carbon atom – 12 atoms.

  • The notion of molar mass can be used to calculate how many grams of substance are necessary when we know the number of moles required.
  • The molar mass, also known as molecular weight, is the sum of all the atoms that make up a mole of a molecule’s total mass in grams. The unit of measurement is grams per mole.


  1. Atomic mass of H = 1u
  2. Atomic mass of N = 14 u
  3. Atomic mass of O = 16u

The molar mass of HNO3 is

(1 × 1) +(1 × 14) + (16×3) = 63 u.

Articles to refer

  1. What is molecular mass and how to find molecular mass
  2. Calculate the molecular mass of- NH3, CO2, HCl, Cl2
  3. Calculate the molecular masses of H2, O2, Cl2, CO2, CH4, C2H6, C2H4, NH3, CH3OH.

Was this answer helpful?


4.5 (101)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.


  1. Good way to learn.

  2. nice

Leave a Comment

Your Mobile number and Email id will not be published.





App Now