Question

ons correctly to pass the test
What mass of CuSO4 6H20 is required to prepare 800 mL of 045M CUSO4 solution
0 96.3100
057.43668
0.55.9966
57.43669
463166​

Answer 1

Answer:

Explanation:

0.45 Molar solution of copper sulphate hexahydrate contains 0.45 moles of in 1 liter.

Thus, essentially, we'd be having 0.45*0.8=0.36 moles in 800 ml of the solution.

A quick calculation of the molar mass of the CuSO4.6H2O gives us the result as 267.60. Multiplying this by 0.36, we get the mass required as 96.34.

Note: Copper sulphate usually has 5 molecules of water of crystallisation but since the OP has given in the question as CuSO4.6H2O