Answer:
Number of moles = 1.5 mol
Explanation:
Given data:
Number of moles = ?
Mass in gram = 3 g
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of hydrogen gas = 2.02 g/mol
By putting values,
Number of moles = 3 g / 2.02 g/mol
Number of moles = 1.5 mol
