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4. Define the following: a. supematant liquid - b, decant -

4. Define the following: a. supematant liquid - b, decant -

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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4. Define the following: a. supernatant liquid - b. decant - 5. In the following reaction give the oxidation number of Cu and N in the reactant and product. Indicate which reactant is oxidizing agent and which reactant is reducing agent. Cu(s) + 4HNO:(aq) Cu (NO:): (aq) + 2NO:(g) + 2H20 (1) -> Ču: N: - N: Cu: Oxidizing Agent: Reducing Agent: 6. If a student begins the experiment with 0.050 grams of copper, how many grams of zine will be theoretically required in the final step to recover the copper?
Transcribed Image Text:4. Define the following: a. supernatant liquid - b. decant - 5. In the following reaction give the oxidation number of Cu and N in the reactant and product. Indicate which reactant is oxidizing agent and which reactant is reducing agent. Cu(s) + 4HNO:(aq) Cu (NO:): (aq) + 2NO:(g) + 2H20 (1) -> Ču: N: - N: Cu: Oxidizing Agent: Reducing Agent: 6. If a student begins the experiment with 0.050 grams of copper, how many grams of zine will be theoretically required in the final step to recover the copper?
1. The reaction between Cu metal and concentrated HNO3 should be done in a fume hood. Why? a list the hazard(s) associated with: a. concentrated HNO3 b. 6 M NAOH c. 6 M H2SO4 3. Why should you wait for a centrifuge to stop on its own rather than stopping it abruptly with your hands or fingers?
Transcribed Image Text:1. The reaction between Cu metal and concentrated HNO3 should be done in a fume hood. Why? a list the hazard(s) associated with: a. concentrated HNO3 b. 6 M NAOH c. 6 M H2SO4 3. Why should you wait for a centrifuge to stop on its own rather than stopping it abruptly with your hands or fingers?
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