2.MATERIALS and METHODS 2.1. Nature of Reactants 2.1.1 We placed 3mL of 3 M HCl into each of 3 seperate test tubes. Next we added mossy zinc to the first test tubes‚ Sn granules to the second and Cu filings to the third and compared the rates of evolution of hydrogen gas in each test tube. 2.1.2. We mixed 3mL of 0.02 M KMnO4 and 2mL of 3 M H2SO4 in a test tube and stirred using a glass rod. Next‚ we divided the solution into two. We added 2mL of 0.03 M Na2C2O4 solution to the first half and
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Chemical Gas Tests Procedure Part 1: Hydrogen and Manganese Dioxide 1. Inserted 4mL of hydrogen into a test tube 2. Scooped a little amount of manganese dioxide on the end of a wooden splint 3. Allowed the tip of the splint to flame using the Bunsen Burner 4. Allowed the reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test
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“Test-Tube Burgers” One summer when taking a trip to a friends country house for a weekend I took on the challenge of being a vegetarian. My friend‚ an only child‚ had been raised a vegetarian by parents who were also vegetarians; never once in his life had he eaten meat. Although the family was tolerant of whatever I did‚ I decided this was an opportunity to try it for myself and see what it would be. At the end of the few days I found it quite easy‚ although in reality I did not consume nearly
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Answer the questions below. When you are finished‚ submit this assignment to your teacher by the due date for full credit. (2 points) |Score | | | 1. List the pH levels you recorded for each test tube. Answer: |Test Tube |pH Level | |1 | | |2 | | |3 | | |4
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weighing paper digital scales rubber tubing (hose) acetic anhydride filter paper Mel-temp apparatus 10- mL graduated cylinder large test tube medicine dropper | Compound | FW (g/mol) | MP (BP) | density | Hazards | | Acetanilide | 135.17 | 114 ºC | ---
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copper and silver nitrate. Materials Copper wire stirring rod 18 x 150 mm test tube silver nitrate‚ AgNO3 50 mL graduated cylinder distilled water 100 mL or 250 mL beaker Procedure Day 1 1. Obtain a 30 cm length of bare copper wire‚ stirring rod‚ and 18 x 150 mm test tube. Coil the copper wire by wrapping it around a glass-stirring rod. Stretch the coiled wire until it is about 2 cm longer than the test tube. Leave wire tightly coiled near one end and stretched out and straighten toward
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Recently a scientist by the name of Mark Post helped create a “test tube” beef burger. The burger was grown in a solution of nutrients and cost about 330‚000 dollars to make. The burger was created by taking muscle cells from a cow and growing them into tissue. The meat had to be dyed to make it look like real beef. The meat contains no fat and is disease free. The meat was made in the Netherlands at Maastricht University. It was served to two volunteers and was flavored with egg powder and bread crumbs
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how they function in physiological systems Materials: O.1 M CuSO4 * 10% skim milk mixture 3 M HAc 0.2 M K2Cr2O7 0.04 M AgNO3 0.02 M K2Cr2O7 * 1% Gelatin 0.01 M AgNO3 5 Test tubes Dialysis bag Observations: Part I. |Test Tube Number |CuSO4 Solution |Skim Milk |3 M HAc | |1 |4 mL | |
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Laboratory Report Title: Identifying the four major classes of macromolecules through various tests. Group Members: Antonia Johnson‚ Payton Ewing‚ Lenneisha Hepburn‚ Kendisha Hanna‚ Introduction: Macromolecules also known as biological molecules are monomers which are the simple units of polymers. All macromolecules contain carbon and hydrogen which are found in organic compounds. In this Experiment we will test for the presence of protein‚ starch‚ lipids‚ and sugars by analyzing the content off food
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Study Generator has many meanings. However‚ this study’s definiton of generator is a program or software that generates something‚ in this case‚ tests‚ patterns and even format. Test generators can help you create your tests. With test generators‚ you can create multiple-choice and single choice questions all on the same test. You can also add images in question‚ scenario‚ choices and explanations varying on the type of test generatos used. You can copy questions from other tests without retyping
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