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Compute the mole of CO2(g) evolved in Part II, Tube #1 through # 5 assuming that this gas could be collected at 23°C and 755 mm Hg. Tube 1

Compute the mole of CO2(g) evolved in Part II, Tube #1 through # 5 assuming that this gas could be collected at 23°C and 755 mm Hg. Tube 1

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Post Laboratory Questions** 1. Include the calculations made prior to making up the potassium iodide and calcium chloride solutions used in this experiment. - a. Potassium iodide - b. Calcium chloride 2. Write the net ionic equation that occurs in Part I. 3. Write the net ionic equation that occurs in Part II. 4. Compute the mole of CO₂(g) evolved in Part II, Tube #1 through #5 assuming that this gas could be collected at 23°C and 755 mm Hg. - Tube 1 - Tube 2 - Tube 3 - Tube 4 - Tube 5
Transcribed Image Text:**Post Laboratory Questions** 1. Include the calculations made prior to making up the potassium iodide and calcium chloride solutions used in this experiment. - a. Potassium iodide - b. Calcium chloride 2. Write the net ionic equation that occurs in Part I. 3. Write the net ionic equation that occurs in Part II. 4. Compute the mole of CO₂(g) evolved in Part II, Tube #1 through #5 assuming that this gas could be collected at 23°C and 755 mm Hg. - Tube 1 - Tube 2 - Tube 3 - Tube 4 - Tube 5
**Part II: Reaction with Ca⁺² and CO₃⁻²** 1. **Work in Pairs:** - Collaborate with a partner for this experiment. 2. **Preparation:** - Once your instructor approves your plan, prepare 100.0 mL of a 0.100 M solution of Ca⁺² ions. 3. **Rinse Equipment:** - Rinse the pipets and beakers from Part I two or three times with water before using them in Part II. 4. **Setup Test Tubes:** - Clean 5 test tubes and arrange them on the test tube rack as you did in Part I. 5. **Sodium Carbonate Solution:** - Measure about 20 mL of 0.10 M sodium carbonate solution into a 30 mL beaker and place 20 mL of your Ca⁺² solution into another beaker. Replenish as needed. 6. **Add Solutions to Test Tubes:** - Use Mohr pipets to add the Ca⁺² and CO₃⁻² solutions to each test tube according to the following table: | Tube # | Ca⁺² (mL) | CO₃⁻² (mL) | |--------|-----------|------------| | 1 | 1.00 | 5.00 | | 2 | 2.00 | 4.00 | | 3 | 3.00 | 3.00 | | 4 | 4.00 | 2.00 | | 5 | 5.00 | 1.00 | 7. **Centrifuge Process:** - Centrifuge all test tubes and discard the supernatant solution. Ensure the centrifuge is balanced using a 6th test tube filled with an equivalent amount of water. 8. **Dissolve Precipitate:** - Add 0.10 M HCl solution drop-by-drop to each precipitate, mixing after each drop. Record the number of drops needed to completely dissolve the precipitate. 9. **Data Plotting:** - Plot the number of drops of 0.10 M HCl needed against the amount of Ca⁺² solution. Include points (0,0
Transcribed Image Text:**Part II: Reaction with Ca⁺² and CO₃⁻²** 1. **Work in Pairs:** - Collaborate with a partner for this experiment. 2. **Preparation:** - Once your instructor approves your plan, prepare 100.0 mL of a 0.100 M solution of Ca⁺² ions. 3. **Rinse Equipment:** - Rinse the pipets and beakers from Part I two or three times with water before using them in Part II. 4. **Setup Test Tubes:** - Clean 5 test tubes and arrange them on the test tube rack as you did in Part I. 5. **Sodium Carbonate Solution:** - Measure about 20 mL of 0.10 M sodium carbonate solution into a 30 mL beaker and place 20 mL of your Ca⁺² solution into another beaker. Replenish as needed. 6. **Add Solutions to Test Tubes:** - Use Mohr pipets to add the Ca⁺² and CO₃⁻² solutions to each test tube according to the following table: | Tube # | Ca⁺² (mL) | CO₃⁻² (mL) | |--------|-----------|------------| | 1 | 1.00 | 5.00 | | 2 | 2.00 | 4.00 | | 3 | 3.00 | 3.00 | | 4 | 4.00 | 2.00 | | 5 | 5.00 | 1.00 | 7. **Centrifuge Process:** - Centrifuge all test tubes and discard the supernatant solution. Ensure the centrifuge is balanced using a 6th test tube filled with an equivalent amount of water. 8. **Dissolve Precipitate:** - Add 0.10 M HCl solution drop-by-drop to each precipitate, mixing after each drop. Record the number of drops needed to completely dissolve the precipitate. 9. **Data Plotting:** - Plot the number of drops of 0.10 M HCl needed against the amount of Ca⁺² solution. Include points (0,0
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