could you do question #2 in the image? Procedure WASTE REMINDER: Dispose of all
ID: 883712 • Letter: C
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could you do question #2 in the image?
Procedure WASTE REMINDER: Dispose of all waste in the designated waste container. No waste from this lab should be poured down the sink. In a 5 mL conical vial, containing a spin vane, add I mL of E,E-2,4-hexadien-1-ol solution in toluene. The solution contains 60 mg of the diene. Caution! 2,4-hexadien-1-ol is Toxic when in contact with skin. Use caution when handling and rinse thoroughly with water, for 15 minutes, If you come into contact with the reagent. Prepare yourself for the laboratory: Question #2 What is the molarity of the solution? Weigh out 60 mg maleic anhydride on weighing paper and deliver to the reaction vial. Add an air condenser to the conical vial and place on the hot plate. Heat to reflux for 15 min. Take care to keep solvent ring below the midpoint of the air condenser. Remove the reaction from the hot plate and spot the mixture on the TLC plate. Let plate stand for 5 min to allow toluene to evaporate. Prepare yourself for the laboratory: Question #3 Whys is it important to allow toluene to evaporate before visualizing the TLC plate? Develop the TLC plate in ethyl acetate to ensure that the reaction has gone to completion, i.e., no starting material is left. When the reaction is complete, cool to room temperature, then place the flask in an ice water bath for an additional 10 min. Collect the product by vacuum filtration using a Buchner funnel. Wash the crystals with 1 mL cold toluene. Note. You will lose a substantial amount of product if toluene is not cold! Obtain a proton and COSY NMR spectrum. Analyze the NMRs and attach to your post-lab report.Explanation / Answer
Molarity= No. of moles/ Volume of solution in ml *1000
Moles= given weight/ molar mass
weight of 2,4-hexadiene-1-ol = 60 mg= 0.60 gm
molar mass of 2,4-hexadiene-1-ol = 98.14 gm
moles= 0.60/ 98.14 = 0.006 moles
Molarity = 0.006/1 * 1000= 6 M
Molarity of the solution is 6 M
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