Empirical Formula. Flashcards
1
Q
What is empirical formula?
A
The simplest whole-number ratio of the atoms of each element in a compound.
2
Q
How do you work out RFM from equations?
A
A balanced chemical equation must have the same Ar and Mr values on each side of the equation.
3
Q
How do you work out empirical formula using grams?
A
Divide both substances by their atomic mass, then divide by the smaller number.
4
Q
COMPLETE THE SENTENCE:
If there is a percentage of elements rather than grams…
A
… assume the total mass is 100g so nothing is changed.
