Chem207 Lab2 - 2. Chemical Reactions By Vicky (Linwei) Tian...

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2. Chemical Reactions By Vicky (Linwei) Tian lt93@cornell.edu Lab Instructor: Sean O’Leary Chemistry 207 Lab Section 1 Lab Date: September 11, 2006 Due Date: September 18, 2006
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Results and Discussion: A1. Magnesium Sulfate + Barium Chloride 5 drops of 0.1M MgSO 4 were added to the test tube. 5 drops of 0.1M BaCl 2 were added to the same test tube. Liquid becomes creamy white. White precipitate is formed on the bottom of the test tube. MgSO 4 + BaCl 2 MgCl 2 + BaSO 4 A2. Sodium Carbonate + HCl 2 mL of Na 2 CO 3 were added to the test tube. 5 drops of 6 M HCl were added to the same test tube. The color stayed unchanged – clear. Bubbles were formed because CO 2 were produced. Na 2 CO 3 + 2HCl H 2 O + 2NaCl + CO 2 A3. Acetic Acid + Sodium Hydroxide 2 mL of 0.150M HC 2 H 3 O 2 were added to test tube 1. 2 mL of unknown molarity NaOH were added to test tube 2. 10 drops of HC
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Chem207 Lab2 - 2. Chemical Reactions By Vicky (Linwei) Tian...

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