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Calculate no.of atoms in 2g of hydrogen.

Molar mass of hydrogen, H2 = 2 g mol-1
No. of moles = 22= 1
No. of atoms = No. of moles × Avagadro number
                      = 1 ×6.022×1023
                             = 6.022×1023 atoms
                          

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Given mass= 2g
Molar mass of 2g of hydrogen= 1*2
=2 g/mole
Avogadro number =6.022* 1023

Therefore, no. of atoms = Given mass* Avogadro number
Molar mass

=2 * 6.022*1023
2

= 6.022* 1023atoms
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Diya anges could u explain the last part
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Hello, we can find the no.of atoms (no. of particles) using the formula.

No. of atoms=
Given mass * Avogadro number
Molar mass
=2*6.022 *1023
2
=1*6.022*1023
=6.022 *1023 atoms (2 divided by 2 gets cancelled, so 1 * 6.022 *1023appears.)

Hope you have understood.
Thank you.

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