Chemistry Revision

HideShow resource information
  • Created by: 09Butcher
  • Created on: 14-05-14 18:56
Relative Atomic Mass(Ar), Relative Formula Mass(Mr) and Moles
Ar - Usually the same as the mass. Mr - Add up the Ar's. Moles - Relative atomic mass in grams.
1 of 6
Percentages by Mass
Can use Ar and Mr to work out percentage of an element in a compound.
2 of 6
Empirical Formula
1)Find the masses 2)Look up the Ar values 3)Find moles 4)Find the ratio(divide by smallest no)
3 of 6
Calculating Reacting Masses
In a solution containing 100g NaOH, how much clorine gas will we need?
4 of 6
Balancing Equations
N + H -> NH , Ca + O -> CaO, Br + Kl -> KBr + I
5 of 6
Percentage Yield
A reaction may not go to completion because it is reversible. Some of the product may e lost when it is separated from the reaction mixture. Some of the reactant may react in ways different from the expected reaction.
6 of 6

Other cards in this set

Card 2

Front

Can use Ar and Mr to work out percentage of an element in a compound.

Back

Percentages by Mass

Card 3

Front

1)Find the masses 2)Look up the Ar values 3)Find moles 4)Find the ratio(divide by smallest no)

Back

Preview of the back of card 3

Card 4

Front

In a solution containing 100g NaOH, how much clorine gas will we need?

Back

Preview of the back of card 4

Card 5

Front

N + H -> NH , Ca + O -> CaO, Br + Kl -> KBr + I

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Calculations, moles and yield resources »