Topic 5 - MOLES, EQUATIONS AND FORMULAE Flashcards
1
Q
What is the formula relating moles, mass and molar mass?
A
Moles = mass/molar mass
2
Q
What is the formula relating moles, concentration and volume?
A
Moles = concentration x volume
3
Q
What is the formula relating moles and gas volume?
A
Moles = GAS volume/24
4
Q
What is Avogadro’s number and what is it?
A
6.02 x 10^23
5
Q
What is the formula relating moles, number of molecules and Avogadro’s constant?
A
Moles = number of molecules/Avogadro’s constant
6
Q
What is the ideal gas equation?
A
pV = nRT
7
Q
What is the formula for % atom economy?
A
Molar mass of one product/Total molar mass of all products x100
8
Q
What is hazard?
A
A bad thing that could happen
9
Q
What is risk?
A
The likelihood of something happening
