Question

find the number of atoms in 2g of h2 gas​

Answer 1

Answer:-

6.022×10²³ atoms

Explanation:-

Given:-

→Mass of H₂ (Hydrogen gas) = 2g

To find:-

→Number of atoms in 2g of H₃ gas.

Solution:-

•Atomic mass of Hydrogen(H) = 1u

Thus, molar mass of H₂:-

= 1×2

= 2g

Firstly, let's calculate the number of moles in 2g of H₂ gas:-

No of moles = Given mass/Molar mass

= 2/2

= 1 mole

Thus, 1 mole is present in 2g of H₂ gas.

• Avogadro Number = 6.022×10²³

No of atoms:-

= No of moles × Avogadro Number

= 1×6.022×10²³

= 6.022×10²³ atoms

Thus, 6.022×10²³ atoms are there is 2g of H₂ gas.

Answer 2

Explanation:

Number of atoms in 2g of H₃ gas. Thus, 1 mole is present in 2g of H₂ gas. Thus, 6. 022×10²³ atoms are there is 2g of H₂ gas.