Question

Calculate the number of moles CuCl2 necessary to make 50 mL of a 0.15M solution

Answer 1

 Volume  ⇒ 50 mL in liters : 50 / 1000 = 0.05 L

Molarity of solution ⇒ 0.15 M

Number of moles:

n =  M * V

n = 0.15 * 0.05

n = 0.0075 moles of CuCl2

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