Question

a certain solution has a molarity of m = 6.39 mol/l and has a volume of v =0.550 l what is the value of n

Answer 1

n = 3.49 mol

Molarity = moles/litres or c = n/V

n = Vc  = 0.550 L × (6.39 mol/1 L) = 3.49 mol