Be sure to run three lanes; one with starting material, reaction, and co-spot. also be sure to completely evaporate the acetic acid from the plate before developing. record the tlc in your notebook. when the reaction is complete according to tlc (the reaction should take less than 20 minutes), quench by adding water (15 ml) and a saturated solution of sodium bisulfite (2 ml). add an additional ml of the bisulfite solution if the orange color persists. stir the solution for 5 minutes. place the reaction flask in an ice bath for 5 minutes and collect the crystals obtained using a hirsch funnel. recrystallize the product from an appropriate solvent. you will need to do some trial recrystallizations using a small amount of your crude product in a test tube. remember that you need a solvent or a mixture of solvents in which the compound is soluble warm but not at rt or cold. after isolation of your purified crystals, dry the product for at least 24 hours isn a desiccator as it is important to have no water present in the following reaction (how can this drying be accomplished in less time? no, not by using an oven…). obtain and record the following information in your notebook: 1.purified product description (color, physical state, etc.) 2.purified weight/yield 3.tlc analysis of the purified material 4.melting point of the purified material 5.ir of the purified material ii-02
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Chemistry, 22.06.2019 04:30, earcake2470
How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
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Chemistry, 22.06.2019 13:10, bartonamber4042
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
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Be sure to run three lanes; one with starting material, reaction, and co-spot. also be sure to comp...
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