Post Laboratory Questions: 1. What is the purpose of rinsing the precipitate at the end of the reaction? How would your calculation for percent yield be affected if this were not rinsed thoroughly?
Post Laboratory Questions: 1. What is the purpose of rinsing the precipitate at the end of the reaction? How would your calculation for percent yield be affected if this were not rinsed thoroughly?
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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Please help with questions 1-4
Transcribed Image Text:**Chem 105 Online: Post Laboratory Questions**
1. **What is the purpose of rinsing the precipitate at the end of the reaction? How would your calculation for percent yield be affected if this were not rinsed thoroughly?**
2. **Suppose a student introduces an object to aid in stirring the solution but does not rinse the object and places it directly on their countertop. They notice a white powder that resides on the stirrer. How will their calculation for percent error be affected? Explain.**
3. **Why must the filter paper be dried before obtaining the final mass?**
4. **Would you classify this process as an effective method to form Calcium Carbonate? What are the limitations of the experiment if it were to be done on a commercial level? What changes would you make if you needed to perform this in a commercial setting?**
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