By Frederick A. Bettelheim, Joseph M. Landesberg
The forty eight experiments during this well-conceived guide illustrate very important ideas and ideas generally, natural, and biochemistry. As in prior variants, 3 simple ambitions guided the improvement of the entire experiments: (1) the experiments illustrate the techniques realized within the lecture room; (2) the experiments are essentially and concisely written in order that readers will simply comprehend the duty handy, will paintings with minimum supervision as the guide presents adequate info on experimental tactics, and should be ready to practice the experiments in a 2-1/2 hour laboratory interval; and (3) the experiments are usually not basically easy demonstrations, but in addition include a feeling of discovery. This version comprises many revised experiments and new experiments.
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Additional resources for Laboratory Experiments for Introduction to General, Organic and Biochemistry
2 ¼ d. 43 ¼ 13 This page intentionally left blank name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . section . . . . . . . . partner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . grade . . . . . . . . . . . . . . . . . . . 1 date . . . . . . . . E X P E R I M E N T 1 Report Sheet Bunsen burner 1. What is the color of the ﬂame when the air vents are closed?
What causes the luminescence in the cooler, yellow ﬂame? 3. 3 mL of a solution. What piece of glassware should that student use? Justify your choice. 4. The diagram below is of a nonluminous Bunsen ﬂame. Indicate the approximate region of the hottest part of the ﬂame. 5. 562 g on a calibrated top-loading balance. Each student used their own top-loading balance, recorded three weights for the beaker, and then determined the average. 729 Average a. Find the averages. b. Which set of results matches the known weight of the beaker?
2. To determine the density of water. 3. To determine the density of a liquid and use this as a means of identiﬁcation. 19 20 Experiments for General, Organic, and Biochemistry n Bettelheim/Landesberg PROCEDURE Density of a Regular-Shaped Object 1. Obtain a solid block from the instructor. Record the code number. 2. 05 cm (1). Calculate the volume of the block (2). Repeat the measurements for a second trial. 3. Using a single pan, triple beam balance or a top-loading balance (if available), determine the mass of the block (3).