How many grams are in 89.6 moles of oxygen gas O2?

Answer 1

molar mass O₂ = 32 g/mole

So, if 1 mole O₂ is 32 g, how many grams are in 89.6 moles?

89.6 moles O₂ x 32 g O₂ / mole O2 = answer