5.11 Calculating Mass in Reactions

Question 1

What are the four steps needed for calculating the mass of product that can be made from the given mass of a reactant?

Answer 1

1) Write out the balanced equation
2) Find the moles of the known substance (moles = mass / Mr)
3) Find the moles of the unknown substance (using the molar ratio from the balanced equation)
4) Find the mass of the unknown substance (mass = moles x Mr)