Calculate number of moles of hydrogen in `0.448 litre of hydrogen gas at (STP)

Number of isotopes of hydrogen are

Solve the following examples: Calculate the number of moles in the following: 0.5 gram of hydrogen.

The number of 1.0 g hydrogen in litres at N.T,P is

Calculate the number of moles of hydrogen and gas present in 0.5 m^3 sample of hydrogen gas at a pressure of 101.325 Pa and at 27^@C .

Calculate number of atoms of hydrogen present in 5.6 g of urea (molar mass of urea = 60 g moI^-1 ).Also calculate the number of atoms of N,C and O.

Calculate the number of moles in the following: Mass of 3.5 g of hydrogen

Calculate the number of moles in the following: 68 grams of ammonia.

Calculate the internal energy of hydrogen and nitrogen.

Calculate the number of atoms in 52 moles of Argon (Ar)