How many moles of cuso4 are used to make 250 ml of a 0.50 m cuso4 solution?

In order to prepare a 250 ml solution of CuSO₄ of 0.5 M we need to calculate the amount of CuSO₄ requires. So, as we know,

                      Molarity  =  Moles / Volume of Solution
Also, 
                      Molarity  =  (Mass ÷ M.mass) / Volume of Solution

Solving for Mass,

                      Mass  =  Molarity × M.mass × Volume

Putting Values,                                                  ∴ 250 ml  =  0.25 dm³
     
                      Mass  =  0.5 mol.dm⁻³ × 159.6 g.mol⁻¹ × 0.25 dm³

                      Mass  =  19.95 g

Step 2:
            Take 19.95 g of CuSO₄, add it to volumetric flask and add distilled water upto the mark of 250 ml. The resulting solution will be of concentration 0.5 M.

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