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Initial temperature (2 minutes) Highest temperature atsained (4-9 minsstes) Chan

ID: 1029819 • Letter: I

Question

Initial temperature (2 minutes) Highest temperature atsained (4-9 minsstes) Change in temperature, AT .10- Heat absorbed by HO, q Molar Heat of Solvation, .elvu.in Caleulations: solid anhydrous MgSO, is very hydroscopic, when exposed to moist air it will pick up water to form MgSO H2O. What is the classification of compounds formed by salts containing H:0 molecules in their crystal lattice structure? 1. 2. Relating to question 1, how might you remove the water from MgSO4·HO? MgSO,.HO can be purchased "over the counter". What is the "common" name for MgSO4 H20? 3. psani Sali Chemistry 131 - Univenity of South

Explanation / Answer

1. Compounds that contain water molecules as water of hydration or water of crystallisation bound to the central metal ion in a definite ratio are called hydrate salts. Example is copper sulphate pentahydrate, magnesium sulphate monohydrate.

2. When a certain amount of heat is supplied to these hydrated salts, the water of hydration or the water molecules infused goes off.

3. Common name for magnesium sulphate hydrated salt is Epsom salt.