amount of substance Flashcards
1
Q
what is the equation that links mass, moles and Mr?
A
moles = mass / Mr
2
Q
how do you find the number of molecules?
A
molecules = moles x avogadro’s constant
3
Q
what is the equation that links moles, volume and concentration?
A
moles = concentration x volume
4
Q
what is the ideal gas equation?
A
pV = nRT
5
Q
what number to you have to add to convert from degrees to kelvin?
A
273
6
Q
A
