topic 3a - amounts of substances (5. limiting reactants)

Question 1

what is the limiting reactant

Answer 1

a reactant that’s used up completely in a reaction

Question 2

how to calculate the mass of a product

Answer 2

write out the balanced equation
work out Mr of the limiting reactant and the product you want to find the mass of.
work out how many moles there are of the limiting reactant
use the balanced equation to work out how many moles there will be in the product
use the number of moles along with the relative formula mass of the product to calculate the mass.