Hydrate lab report.docx - Formula of a Hydrate Scott Christiansen Block D Purpose The purpose of this lab was to identify the formula of a hydrate Data

Hydrate lab report.docx - Formula of a Hydrate Scott...

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Formula of a Hydrate Scott Christiansen Block D 3/31/17 Purpose The purpose of this lab was to identify the formula of a hydrate. Data Masses Table Name of Object Mass Empty Crucible and Cover 15.48g Hydrate (CuSO 4 * #H 2 O) 6.10g Anhyrdate 4.00g Water Removed 2.10g Petri Dish 7.68g Crystals 6.23g Data Analysis Calculations
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Hydrate Formula (Molar Ratio) Compound Molar Mass # grams # Moles Molar Ratio CuSO 4 63.5 amu + 32.1 amu + 16 (4) amu = 159.6 g/mol (amu) 4 grams 4g____ = 159.6 g/mol 0.02506 moles 0.02506 = 0.02506 1 H 2 O 1(2) amu + 16 amu = 18 g/mol (amu) 2.1 grams 2.1g____ = 18 g/mol 0.1166 moles 0.1166_ = 0.02506 4.65 (round to 5) Molar Ratio= CuSO 4 * 5H 2 O Percent Yield 6.23g (mass of crystals)___ X 100 = %102 6.10 (Original mass of hydrate) Data Analysis Questions 1) Explain the differences between hydrates and anhydrous salts. What signified the change froma hydrate to an anhydrous salt during the lab?
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