Percent Composition Flashcards
1
Q
FROM COMPOUND FORMULA. % of element =
A
(Moles of element **X ** MM of element. / MM of compound) X 100 =
2
Q
what is nₐ
A
moles of a
3
Q
what is MMₐ
A
Molar Mass of a
4
Q
FROM EXPERIMENTAL DATA . % of element =
A
total element mass / compound mass. X 100
5
Q
how many SF for compound % composition
A
4
6
Q
how many SF for experimental data % composition
A
use SF rules
7
Q
% solute in solution =
A
m ₛₒₗᵤₜₑ / m ₛₒₗᵤₜᵢₒₙ x 100
8
Q
always change percentages to
A
conversion factors over 100
9
Q
the %s in a compound formula problem always
A
= 100%
10
Q
A
