Solve problems :
What is the ratio of molecules in 1 mole of `NH_3` and 1 mole of `HNO_3`.

1 mole of a gas is

The number of moles in 17 g of NH_3 (17 g mol_1 ) is

What is the mass of 0.5 mole of ozone molecule?

What is a mole.

Nh_3 molecule is formed by

What is the mole fraction of the solute in a 1.00 m aqueous solution ?

Total random kinetic energy of the molecules in 1 mole of a gas at a temperature of 300 K is (R = 2 cal/mole °C)

A vessel contains one mole of oxygen and one mole of hydrogen at N.T.P. What is the ratio of the values of rms velocities of hydrogen and oxygen molecules?

Solve the following examples: What is the mass in grams of 0.4 mole of carbon dioxide (CO_2) ?

What is Avagadro number ? What is a mole ?