If the concentration of a saturated solution at 0∘c is 12.5 gcuso4/100 g soln, what mass of cuso4⋅5h2o would be obtained? [hint: note that the solution composition is stated in terms of cuso4 and that the solid that crystallizes is the hydrate cuso4⋅5h2o.]

Mass of CuSO4.H2O obtained:

Explanation:

The molecular weight of the salt is:

In the solution: 12.5 g of CuSO4

In moles:

Mass of water:

5 moles of water per mol of salt:

Mass of CuSO4.H2O obtained:

petroleum? coal maybe?

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