Take a moment to formulate and write down a hypothesis describing how the addition of chloride ions, distilled water and silver nitrate will affect the equilibrium of this reaction?
1. State the La Chatelier’s Principle.
If you haven’t already done so, formulate a hypothesis about the effect of addition chloride ions, water, and silver nitrate on equilibrium as you will need to include this in your final report.
a) Imagine the following scenario: a student doing the experiment added 20 mL of silver nitrate, AgNO3, to the blue equilibrium mixture. The reaction mixture become pink and cloudy with white precipitate of silver chloride , AgCl, appearing in the bottom of the flask. Can you explain how those observations are consistent with Le Chatelier’s principle?
b) Imagine the scenario: A student placed pink equilibrium mixture in the hot water. Reaction mixture changed color to blue. Is the reaction endothermic or exothermic? How the change of the temperature influences the equilibrium of this reaction? Explain.
Report Requirements
This section contains key information that must be included in your typed report.
1. Define the problem in a manner that is clear and insightful.
1. Identify the strategies and procedures used during the lab.
2. Clear hypothesis statement and other potential solutions that identify any relevant contextual factors (i.e. real-world costs).
3. Clear presentation of data including any tables or other figures that are relevant to understanding your stated conclusions at the end of the report. Include any relevant calculations performed during the lab.
4. Clearly stated results and discussion of possible improvements to the procedure.
5. Conclusive statements arguing in favor of your findings.
Here are some questions to consider as you write your report:
1. Does my problem statement make sense?
1. Have I summarized my strategies/procedures well enough to be replicated by an outsider?
2. Did I have a valid hypothesis at the start of the lab? Have I expressed this in my report?
3. Do my tables and/or graphs make sense?
4. Are my conclusions valid based on my supplied data?
5. Did I thoroughly summarize my laboratory experience in a concise, factual way such that the reader can understand my processes and findings in the conclusion section alone?
