Question

Calculate the mass of water having same number of hydrogen atoms as are present in the 32gram of methane. Please help me soon......

Answer 1

Hello friend!!!

Molar mass of CH4 (methane) is 16g

16g of methane contains 4moles of H atoms.
So, 32g of methane will contain 8 moles of H atoms.
8moles = 8×NA atoms of H

Molar mass of H2O is 18g

2moles of H is present in 18g of H2O

So 8 moles of H will be present in (18 × 4=) 72g of H2O.

Therefore, 72g of H2O will contain same number of H atoms as present in 32g of CH4.

HOPE THIS HELPS...... :-)