Question

How many moles are in 64 grams of methane, CH4? A. 4 B. 32 C. 64 D. 13

Answer 1

Answer:

A. 4.

Explanation:

• We can use the relation:

no. of moles (n) = mass/molar mass.

mass = 64.0 g, molar mass = 16.0 g/mol.

∴ no. of moles (n) = mass/molar mass = (64.0 g)/(16.0 g/mol) = 4 mol.