How to Conduct a Flame Test - 1174 Words

Flame Test Lab Your company has been contracted by Julius and Annette Benetti. They are worried about some abandoned, rusted barrels of chemicals that their daughter found while playing in the vacant lot behind their home. The barrels have begun to leak a colored liquid that flows through their property before emptying into a local sewer. The Benettis want your company to identify the compound in the liquid. Earlier work indicates that it is a dissolved metal compound. Many metals, such as lead, have been determined to be hazardous to our health. Many compounds of these metals are often soluble in water and therefore easily absorbed into the body. Electrons in atoms jump from their ground state to excited states by†¦show more content†¦BaCl was most likely present in the rock. 6. How would you characterize the flame test with respect to its sensitivity? Give a reason why the flame test is sometimes invalid. The flame test could possibly read invalid if there is still a trace of the previous substance still in the burner or if there is a trace of the substance in the current substance that is being tested. 7. Based on your results and observations would this method be practical to determine the metals in a mixture? If not, why not. Explain your answer. Based on my results and observations this method would not be practical to determine the metals in a mixture because you wouldn’t know which color is for which substance in the mixture. 8. Using the information learned about what color would you predict that copper nitrate would burn? Explain your answer. I think copper nitrate would burn at a blue/green color, because during the flame test copper burned at a blue/green color. 9. Some stores sell â€Å"fireplace crystals.† When sprinkled on a log, these crystals make the flames red, green, and violet. Explain how these crystals can change the flame’s color. What ingredients do you expect them to contain? These crystals can change the flame’s color because they contain different substances that burn at different colors. I expect the ingredients in them are Barium and Strontium. 10. Using the rules you have learned on orbital fillingShow MoreRelatedCorrelation Between A Cell And Its Background1264 Words   |  6 Pagessubtilis, and Staphylococcus aureus. Materials: - Microscope slides - Kem Wipes - Broth of Escherichia coli - Broth of Staphylococcus aureus - Broth of Bacillus subtilis - Inoculating loop - Bunsen Burner - Rope connector for Bunsen Burner - Test tube rack - Wax pencil - Stain (methylene blue) - Compound Microscope - Clothes pin Procedure: 1. First and most importantly, hands and work area were sanitized with antiseptic and paper towel. 2. Collected all the materials needed, stated aboveRead MoreIonic Compounds And Molecular Compounds1389 Words   |  6 Pages if a substance could not conduct electricity and had low melting points, it would be labeled as a molecular compound since those properties correspond directly with the properties of a molecular compound. If a substance was able to conduct electricity and had high melting points, it would be labeled as a ionic compound because those properties correspond directly with the properties of an ionic compound. The differences in whether a substance has the ability to conduct electricity or not and whetherRead MorePenetration Testing Plan Design For A Project Management And Technical Perspective806 Words   |  4 PagesThis Penetration testing plan design for both project management and technical perspective. 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In project 2, identification of cations and anions was preformed through a series of confirmation and elimination tests that ultimately led to identifyingRead MoreSleuth your slurry2119 Words   |  9 Pageswhen presented with an unknown chemical substance, identification of that substance is revealed through a seires of tests that involve chemical and physical properties of that substance. Problem: You are given an unknown chemical substance that you need to be able to identify. How are you going to do this? The compound can be either harmful or toxic, so what you need to do is test all of its physical and chemical properties, and then find out the synthesis of the substance. Qualitative testingRead MoreChanging American Ethics in Shattered Glass and A Whole Lot of Cheatin’ Going on by Mark Clayton687 Words   |  3 PagesThe dictionary defines ethics as the â€Å" pertaining or dealing with morals or the principals of morality: pertaining to right and wrong in conduct†. On the other hand, moral is defined as the â€Å"principles or habits with respect to right or wrong conduct. It defines how things should work according to an individuals ideals and principles†. The world people live in today does not match the world ourm ancestors lived in a century ago. Back then it seemed that truth, integrity and commitment were theRead MoreThermistor Experiment Essa y2503 Words   |  11 PagesThermistor Experiment Aim: To investigate how the temperature affects the resistance of a thermistor Background Information: The resistance determines the difficulty in which energy can pass through a circuit. It is measured in Ohms (à ¢Ã¢â‚¬Å¾Ã‚ ¦) and the equation for this is; Resistance (à ¢Ã¢â‚¬Å¾Ã‚ ¦) = Voltage (V) Current (I) A thermistor is a type of variable resistor thats resistance is affected by heat and in my investigation I am experimenting with the