If 80 g of copper sulphate is dissolved in deionised water to make 5 L of solution. The concentration of the copper sulphate solution is mol L⁻¹. The value of x is .

[Atomic masses Cu: 63.54 u, S:

Question

If 80 g of copper sulphate  is dissolved in deionised water to make 5 L of solution. The concentration of the copper sulphate solution is  mol L⁻¹. The value of x is .

[Atomic masses Cu: 63.54 u, S: 32 u, O: 16 u, H: 1 u]

Canvas Classes · Accepted Answer

Strategy:
 Calculate the molarity of the solution by dividing the number of moles of hydrated copper sulphate by the total volume of the solution.

Step 1: Calculate the molar mass of 
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- 
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Total Molar mass =

Step 2: Find the moles of solute
Mass = 80 g.

Step 3: Calculate Molarity ()
Volume = 5 L.

Step 4: Express as 
.
Rounding: 64.

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