3. Complete the following table and calculate the theoretical mass percent water for each of the hydrated salts. Refer to the pre-lab reading if necessary. Mass of Anhydrous Salt (amu) Mass of H₂O molecules in Hydrate (amu) Mass of Hydrate (amu) Percent H₂O in Hydrate CuSO4 5 H₂O 159.61 18.02 × 5 = 90.10 MgSO4 7 H₂O CaSO4 2 H₂O
3. Complete the following table and calculate the theoretical mass percent water for each of the hydrated salts. Refer to the pre-lab reading if necessary. Mass of Anhydrous Salt (amu) Mass of H₂O molecules in Hydrate (amu) Mass of Hydrate (amu) Percent H₂O in Hydrate CuSO4 5 H₂O 159.61 18.02 × 5 = 90.10 MgSO4 7 H₂O CaSO4 2 H₂O
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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#### Exercise: Calculating Mass Percent Water in Hydrated Salts
**Instructions:**
1. Complete the following table and calculate the theoretical mass percent water for each of the hydrated salts.
2. Refer to the pre-lab reading if necessary.
3. Show all of your work below for the calculations in the table.
**Hydrated Salts:**
- CuSO₄•5H₂O
- MgSO₄•7H₂O
- CaSO₄•2H₂O
---
| | Mass of Anhydrous Salt (amu) | Mass of H₂O molecules in Hydrate (amu) | Mass of Hydrate (amu) | Percent H₂O in Hydrate |
|------------------------|-----------------------------|----------------------------------------|-----------------------|------------------------|
| CuSO₄•5H₂O | 159.61 | 18.02 × 5 = 90.10 | | |
| MgSO₄•7H₂O | | | | |
| CaSO₄•2H₂O | | | | |
**Note:** The table is partially filled with information for CuSO₄•5H₂O, detailing the mass of the anhydrous salt and the calculated mass of water molecules.
For each compound, you will need to complete the table by calculating and filling in the missing values, including the mass of the hydrate and the percent H₂O in the hydrate.
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