Answer:
3.798g of H₂O
Explanation:
In 1 mole of CuSO₄.4H₂O there are 4 molecules of water. The heat produce the releasing of 4 waters of hydration. To solve this question we need to convert the mass of CuSO₄.4H₂O to moles using its molecular mass (231.67g/mol). The moles of CuSO₄.4H₂O times 4 are the moles of water:
Moles CuSO₄.4H₂O:
12.21g CuSO₄ * (1mol / 231.67g) = 0.0527 moles
Moles H₂O:
0.0527 moles * 4 = 0.2108 moles of water
Mass (Molar mass H₂O = 18.015g/mol):
0.2108 mol * (18.015g / mol) =
3.798g of H₂O
