Question

A solution has been prepared by dissolving 5g of copper sulphate. Calculate the mass
percentage of copper sulphate solution at room temperature.​

Answer 1

Answer:

solution leave on evaporation and drying 1.2 g of anhydrous CuSO  4  in water at 25 o C is 25.

Easy

100 g of dilute solution of CuSO  4 contain=1.2×10=12.0g CuSO 4  Mass of water present in dilute solution

=(100−12)=88g

To saturate 100 g of water, CuSO  4 required = 25 g

So, to saturate 88 g of water, CuSO 4 required = 100 25 ×88=22g

 Thus, the mass of CuSO 4to be added to 100 g of dilute solution to saturate it =(22−12)=10g

I hope this helps!

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