Question

One mole of any substance contains 6.023 x 1023 particles.
If 3.0115 x 1023 particles are present in CO2 , find the number of moles.

Answer 1

It is known that 6.023 x 10^23 number of particles are present in 1 mol of substance so 1 particle will be present in 1/6.023 x 10^23 particles.

Hence 3.0115 x 10 ^ 23 particles would be present in 3.0115 x 10^23 / 6.022 x 10^ 23 moles.

So this value equals to 0.5 moles.

One mole of any substance is equal to 6.02214179 x 10^23 atoms, or other elementary units such as molecules.