Concentration (ll)

Question 1

What is the formula for concentration?

Answer 1

N__
C|V

N= number of moles
C= concentration (mol L-1)
V= volume (L) ÷ 1000 g= cm3= ml, kg=L

Question 2

How do you calculate the Concentration formula: N, C, V If you only have two? E.g.
N, C
N, V
C, V

Answer 2

N÷C
N÷V
CxV