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Unformatted text preview: 2a ), for example by using Newman or Sawhorse projections. (1.5 points) 3. At the end of the reduction using NaBH 4 , you will add crushed ice, followed by water and 1 mL of 3M HCl (DROPWISE). During this last step, gas evolution will occur and an emulsion will form. a) Which gas is formed during the addition of HCl? Show your reasoning using a short mechanism using the unreacted B-H bonds and HCl. (1 point) b) What is the boron byproduct formed using acid hydrolysis? (0.5 point) 4. There is an important note at the end of experiment #6: you will use the diol formed in a subsequent reaction the following week (experiment #7). It will be important to have a diol that is relatively dry for performing experiment #7 and a possible approach is described in the laboratory manual. However, there are many other ways to obtain a dry solid organic compound. Please briefly describe one below (concept and/or experimental procedure). (1 point)...
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