By Donald L. Pavia, Gary M. Lampman, George S. Kriz, Randall G. Engel
That includes new experiments, a brand new essay, and new insurance of nanotechnology, this natural chemistry laboratory textbook deals a complete remedy of laboratory ideas together with small scale and a few microscale tools that use standard-scale ("macroscale") glassware and kit. The ebook is geared up in line with essays and issues of present curiosity and covers quite a few conventional natural reactions and syntheses, in addition to experiments with a organic or future health technological know-how concentration. Seven introductory technique-based experiments, 13 project-based experiments, and sections on eco-friendly chemistry and biofuels spark students' curiosity and interact them within the studying strategy. teachers may well decide to supply Cengage Learning's not obligatory top rate site, which includes movies on uncomplicated natural laboratory recommendations.
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Extra info for A Small Scale Approach to Organic Laboratory Techniques (Available Titles Coursemate Available Titles Coursemate)
Report both the original weight of the impure sulfanilamide and the weight of the crystallized sulfanilamide. Calculate the percentage recovery and comment on several sources of loss. 2. If you completed the Optional Exercise (isolating the solid dissolved in the mother liquor), do the following: a. Make a table with the following information: i. Weight of impure sulfanilamide used in the crystallization procedure ii. Weight of pure sulfanilamide after crystallization iii. Weight of sulfanilamide plus impurity recovered from the mother liquor (see Part A, Optional Exercise) iv.
Nanotechnology Demonstration 6. Why do the letters stay wet while the rest of the surface is dry? 7. Immediately after ﬂame-cleaning the gold surface, water will adhere to the surface when the slide is dipped in water. If this water is cleaned off the slide and the slide is allowed to sit in the air for several minutes, water will no longer adhere to the surface when the slide is rinsed in water. Explain why. 8. A hydroxyl group on the end of the molecule makes the surface of the gold hydrophilic.
Gently wipe the slide completely dry with tissue paper. Breathe gently across the slide as if you were trying to fog up a window. Immediately after breathing on the slide, look at it before the moisture from your breath has evaporated. No writing should appear on the slide. If it does, your instructor should repeat the “erasing” step with the butane torch. Then repeat the rinsing procedure 12 Part One ■ Introduction to Basic Laboratory Techniques Self-assembled monolayer of 11-mercaptoundecan-1-ol.
A Small Scale Approach to Organic Laboratory Techniques (Available Titles Coursemate Available Titles Coursemate) by Donald L. Pavia, Gary M. Lampman, George S. Kriz, Randall G. Engel