Question

A chemist measures the amount of fluorine gas produced during an experiment. He finds that 6.2g of fluorine gas is produced. Calculate the number of moles of fluorine gas produced

Answer 1

Number of moles = mass in grams / molar mass

Molar mass of fluorine, F2 = 19 g/mol

Since fluorine is a diatomic element, we multiply its mass by 2

Thus, 19 x 2 = 38g/mol

Therefore, the number of moles (n) of fluorine gas produced = 6.2g ÷ 38 g/mol

= 0.1632 moles