The flame test is a procedure used in Chemistry to detect the presence of certain elements based on. The color of the light depends on the frequency of the light given off. Use this graph and the information in the introduction to answer the question.
Post Lab questions: Perform all work on a separate sheet of paper. After testing the unknown and all the other compounds, we will be able to identify the unknown, based off the color of the flame.
Summarize specific safety. Pre- Lab Questions: 1. What happens to an electron when energy is added? POST LAB QUESTIONS: Answer in complete sentences, restating each question!
CHEM 1at Arizona State University. Post - lab Questions Answer using complete sentences unless the question is purely mathematical. You could readily identify the elements.
Use a separate piece of paper to answer these questions. Post - Lab Questions: Why is it important to test the flame color of menthol without any compounds dissolved in it? It is important t know the. If so, what problems might arise?
Explain your answer. Why do we see colors in a flame test ? The electrons in an atom occupy different. We will try our ability to identify an unknown salt during the flame test lab. NOVA from WGBH.
May Use flame tests to identify a metal or metallic salt by the color that it produces. Wash hands after handling materials used to prepare for or perform this experiment. This demonstration can easily be used as a student lab. Student Activity.
Sep After calculating and then preparing specific molarity solutions of strontium. As part of their research, chemical engineers use the flame test to identify an.
Flame Test Post Lab Questions Answers. Although some of the flames you will be seeing will appear similar in color, their light can. Pre lab Questions : Submit your answers before you begin the lab.
The TA had made a key for the unknowns and placed the key on the lab bench. INSTRUCTORS: Rinse each looped wire with distilled water after each use. Introduction: In this lab you will conduct a flame test of unknown solutions. Complete the table below showing the Before, During and After steps of a flame test.
Flaming Pickles: Watch the Flaming Pickles demonstration and answer the. I could use to check for understanding after the flame test lab. After making a decision about each statement compare answers with the students.
It helps to dim the lights in your lab so the colors are easier to see. Light the flame and place the boric acid-covered popsicle stick into the flame.
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