1.3 reacting masses and volumes

Question 1

what are the three main steps to work out what mass of another reactant it reacts with and how much product is formed?

Answer 1

1) work out the number of moles of anything
2) use the chemical equation to work out the number of moles of the quantity you require
3) convert moles to the required quantity (volume, mass, etc)

Question 2

what is the formula for solving mole questions involving masses?

Answer 2

m1            m2
----- =       --------
n1M1        n2M2
m1= mass of first substance
n1= coefficient of first substance
M10 molar mass of the first substance

Question 3

definition of yield

Answer 3

the amount of desired product

Question 4

how do you calculate the percentage yield?

Answer 4

% yield= actual yield
——————- *100
theoretical yield