Calculate the mass of each of the following:
2 moles of methane
Given: Number of moles = 2
Atomic mass of CH4 = 12+ 1 × 4 = 16g/mol
To find out the mass of methane, apply the formula given:
⇒ 
⇒ Mass = 2 mol × 16g/mol
⇒ Mass = 32g
Thus, the mass of methane is 32g.
31