Moles, Limiting Reactant, Excess Flashcards
1
Q
how do we convert 1 tonne into grams?
A
= x 1,000,000
2
Q
How do we convert kg into g?
A
x 1000
3
Q
How do we convert mg into grams?
A
x 0.001
4
Q
What is the equations for moles?
A
Moles= Mass/mr
5
Q
How can we work out the mass with the Mr?
A
= Mr/ 6.002 x 10^23
= /1000 (for kg).
6
Q
When we calculate reacting masses for moles what do we consider?
A
= the ratio
7
Q
What is the limiting reagant?
A
= it is all used up in the reaction
= determines the yield of the product and the ratio
8
Q
What is excess reactant?
A
= it is not all used up in the reaction
= there is an additional quantity left
