4 - Chemical calculations Flashcards
1
Q
How can we work out the limiting reactant?
A
Calculate the moles of each reactant and compare the ratio with the balanced equation.
2
Q
What are the factors that affect yield?
A
- Reversible reactions
- Impure reactions
- Unwanted reactions
- Lost in handling, not all was collected or lost in separation
3
Q
What is the difference between percentage yield and atom economy?
A
- Percentage yield deals with mass
- Atom economy deals with atoms left over to see what other useful reactions can be carried out
4
Q
Acid + alkali = ?
A
Salt + water
