Dental Water of reaction needed to react completely with 100 g of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate A 18.6ml B 22.2ml C 30.4ml D 45.3ml 💡 Explanation Water of reaction needed to react completely with 100 g of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate ✓ Correct Answer: A. 18.6ml