Calculations P4 Flashcards
1
Q
How to work out moles
A
mass/ relative formula mass
2
Q
How to work out mass
A
number of moles x relative formula mass
3
Q
What is the limiting reactant
A
The reactant that gets used up first
4
Q
What does a decimetre cubed equal to in cm cubed
A
1000
5
Q
What does a decimetre cubed equal to in ml
A
1000
6
Q
How do you work out the concentration of a solution
A
amount of solute/volume of solution
7
Q
Whats the units for concentration
A
g/dm cubed
8
Q
Whats the units for amount of solute
A
grams
9
Q
whats the unit for volume of solution
A
cm cubed
10
Q
How can you increase the concentration of an aqueous solution
A
adding more solute and dissolving it in the same volume of it solution
evaporating off some of the water from the solution so you have the same mass of solute in a smaller volume of solution
