Chemical Calculations Flashcards
0
Q
How do we find the number of moles?
A
Mass/Mr.
1
Q
How do we find the mass of a substance?
A
No. of moles X Mr
2
Q
What is the unit for molar concentration?
A
Mol/dm3
3
Q
What is the unit for mass concentration?
A
g/dm3.
4
Q
How do we find mass concentration?
A
Mass(grams)/Volume.
5
Q
24dm3 equals?
A
0.024m3 or 2400cm3
6
Q
How do we find molar concentration?
A
No. of moles/Volume.
