hydrate quiz and lab

# 12 follow your instructors directions for disposing

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observe the evolution of heat in re-hydration and observe color changes. 12. Follow your instructor’s directions for disposing of the compounds. 13. Complete the calculations for the formula of the hydrate.

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Hydrates Analysis NAME:______________________________________ PERIOD:_________ LAB PARTNER:_______________________________ DATE:___________ DATA TABLE 1. Hydrate used CuSO 4 · xH 2 O CuSO 4 · xH 2 O 2. Mass of empty beaker 3. Mass of empty beaker and hydrate 4. Mass of hydrate (CuSO 4 · xH 2 O) 5. Mass of anhydrous compound after the first heating 6. Mass of anhydrous compound after the second heating 7. Mass of anhydrous compound (the lower of the two numbers in Boxes 5 and 6) 8. Mass of water (Box 4- Box 7) 9. Molar mass water (H 2 O) 18.02g/mol 18.02g/mol 10. Molar mass anhydrous compound (CuSO 4 ) 159.62 g/mol 159.62 g/mol 11. Moles of anhydrous compound (CuSO 4 ) 12. Moles of water (H 2 O) 13. Moles water / mole anhydrous compound = x 14. Formula for the hydrate: CuSO 4 · x H 2 O 15. Theoretical value of "x" 5 5 Calculations:
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