c3 Flashcards
(8 cards)
1
Q
what are moles used for
A
to compare quantities of substances
2
Q
what’s the conversation of mass
A
the total mass of reactants = total mass of products
3
Q
what’s the relative formula mass
A
each elements relative atomic mass added together
4
Q
what’s the formula for moles
A
rams
5
Q
what does rams stand for
A
relative atomic mass
6
Q
what’s the formula for concentration
A
moles / volume (dm cubed)
7
Q
what happens when a substance dissolves in water
A
it disassociates into its ions as does the water
8
Q
how do you know there are no reactants left over
A
there must be the correct number of moles of both reactants
