Answer:
4.02x10^–4 mol/L
Step-by-step explanation:
Data obtained from the question. This includes:
Mole of NiCl2 = 181 μmol = 18x10^–6 mole
Volume = 450 mL = 450/1000 = 0.45L
Molarity =?
Molarity is defined as mole of solute per unit litre of the solution. Mathematically, it is a represented by:
Molarity = mole /Volume
With the above formula, we can easily find the molarity of NiCl2 as follow:
Molarity = 181x10^–6 /0.45
Molarity of NiCl2 = 4.02x10^–4 mol/L
Therefore, the concentration of NiCl2 is 4.02x10^–4 mol/L