Home
Class 9
CHEMISTRY
(a) Calculate the relative molecular mas...

(a) Calculate the relative molecular mass of water `(H_(2)O)`. (b) Calculate the molecular mass of `HNO_(3)`.

Text Solution

Verified by Experts

(a) Atomic mass of hydrogen = 1u, oxygen = 16 u
So the molecular mass of water, which contains two atoms of hydrogen and one atom of oxygen is = 2 × 1+ 1×16 = 18 u
(b) The molecular mass of `HNO_(3)` = the atomic mass of H + the atomic mass of N+ 3 × the atomic mass of O
= 1 + 14 + 48 = 63 u
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    NCERT|Exercise Exercise|25 Videos

  • ATOMS AND MOLECULES

    NCERT|Exercise Example|2 Videos

  • IS MATTER AROUND US PURE?

    NCERT|Exercise EXERCISE|17 Videos

Similar Questions

Explore conceptually related problems

Determine the molecular mass of water .

Calculate molecular mass of glucose

Calculate the molecular mass of NH_(3) molecule.

Calculate the molecular mass of sugar (C_(12)H_(22)O_(11))