Chemistry Unit 3 - Quantites in chemical reactions Flashcards
1
Q
Mole
A
The mole (symbol: mol) is a counting unit that contains 6.02 x 10^23 entities of a substance
2
Q
Law of definite properties
A
compound always has same proportions of elements regardless of sample size
3
Q
% composition formula
A
% element = m element
—————- x 100%
m sample
4
Q
% yield
A
= actual yield
—————- x100%
experimental yield
5
Q
theoretical yield
A
yield calculated
6
Q
actual yield
A
experimental calculation
