Question

What is the mass in grams of three moles of H2SO4?

Answer 1

Use dimensional analysis to convert from moles to grams. First you need to find the molar mass of H2SO4 The molar mass of H2SO 498.079 g/mole. If one mole weighs 498.079 grams, how much do three weigh?

Setup and multiply
3 mol H2SO4(498.079 g H2SO4/mol H2SO4)

The units cancel out which gives the answer in grams.

I hope this helps