In this worksheet, we will practice defining the mole in terms of Avogadro's constant and converting the mass of a substance to a number of moles.
What is the mass of 0.443 mol of hydrazine, ?
Sulfuric acid has a relative formula mass of 98 g/mol. What is the mass of 2.5 mol of sulfuric acid, to 3 significant figures?
Ammonia has a relative formula mass of 17. How many moles of ammonia molecules are there in 34 g of ammonia?
A 24 g sample of lithium hydride contains 3.0 moles of units. What is the relative formula mass of lithium hydride?