calculating concentrations Flashcards
1
Q
Define Molarity
A
the ratio of the number of moles to the volume of solution in moles per litre (mol/litre)
2
Q
what is amount of substance
A
either moles or grams of a substance
3
Q
what is volume sometimes known as?
A
capacity
4
Q
what is the equation linking concentration, quantity (mass [for concentration] or moles [for molarity]) and volume
A
concentration = quantity/volume
5
Q
when the volume of a substance is 100ml,L,dL etc… how do you represent the concentration as a unit?
A
- as percentage weight per volume
- unit looks like this: % w/v
6
Q
A
