c4- chemical equations Flashcards
1
Q
mass=
A
moles x m
r
2
Q
concentration =
A
mass or moles / volume
3
Q
how do you calculate reacting masses?
A
1) write out balanced equation
2) write out mass mr mole and ratio underneath
3) fill in values given
4) calculate mr
5) use ratio to find mole
4
Q
how do i find grams with moles?
A
x mr
5
Q
how do i find decimetres cubed if i have centimetres cubed?
A
divide by 1000