The simplest, integer formula that represents the make-up of a compound
1 of 8
How Would you get the ratio?
Mass / Ar = Number. Divide number by smallest number. That is the ratio
2 of 8
Once an Empirical ratio is acheived. What would you do with it?
Form a formula. For example, Oxygen is every 1.5 to 1 Iron. Therefore Fe2O3 is the Empirical Formula
3 of 8
What is the Yield
The yield is the amount produced by the reaction, divided by the expected amount x 100
4 of 8
Why is the yield not 100%
If a reaction is not reversible it may not reach the end. Some products could be lost. The percentage yield may be taken before the reaction is complete.
5 of 8
What is a mole?
A mole is a measurement of the number of particles in a substance
6 of 8
What is the measurement of a mole?
Atomic mass in grams/mol
7 of 8
How do you work out the number of moles in a mass?
Divide the mass by the molar number. E.g. 36g / 12g/mol
8 of 8
Other cards in this set
Card 2
Front
How Would you get the ratio?
Back
Mass / Ar = Number. Divide number by smallest number. That is the ratio
Card 3
Front
Once an Empirical ratio is acheived. What would you do with it?
Comments
No comments have yet been made