2C - Moles Flashcards
1
Q
Triangle for moles, atoms, Avogadro’s constant
A
2
Q
Triangle for:
moles, mass, molar mass
A
Mass (m)
Moles (n)
Molar mass (Mr)
3
Q
Relationship between molecular formula and empirical formula
A
Molecular formula is always a multiple of the empirical formula
4
Q
Name and define 2 types of errors when conduction experiments
A
Procedural = Uncertainties to do with the experimental method
Measurement = Uncertainties to do with measurements
5
Q
Equation for percentage error?
A
[(Apparatus error x Number of uses) / Value measured] x 100
6
Q
Triangle for:
Moles, concentration, volume?
What unit must volume be in?
A
Moles = Conentration x Volume
mol dm-3
