"Postlab" Report You should complete the following assignment in your lab notebook with your postlab reports. Include yo

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Postlab Report You Should Complete The Following Assignment In Your Lab Notebook With Your Postlab Reports Include Yo 1 (57.48 KiB) Viewed 50 times

"Postlab" Report You should complete the following assignment in your lab notebook with your postlab reports. Include your name, the title of the assignment, and your section number (1 pt) on each page. Include a purpose statement describing the objectives of the assignment (2 pts). This postlab is written in a different format from regular postlab reports. 1. Using the reaction shown below, calculate the percent yield obtained by a student when reacting 5.0 g of 3-methoxysalicylic acid with 3.9 mL of iodomethane in the presence of 10.3 g of potassium carbonate and obtaining 4.5 g of product, 2,3-dimethoxymethyl benzoate. You should determine which of the three reactants is the limiting reagent and the theoretical yield first. CO₂H COCH HO H.co. 2 CH₂l K₂CO3 + 2 KI + H₂CO3 H₂CO H₂CO 3-methoxysalicylic acid MW=168.15 g/mol 2,3-dimethoxymethyl iodomethane MW 141.94 g/mol d=2.28 g/mL potassium carbonate MW = 138.21 g/mol C₂H₂O4 benzoate MW = 196.20 g/mol C10H1204 2. Using the reaction shown below, calculate the number of milliliters of bromine required to react completely with 5 g of 1,2-dimethoxybenzene. H.co. H₂CO Br Br₂ + HBr H₂CO H₂CO 1,2-dimethoxybenzene MW= 138.18 g/mol bromine MW = 159.8 g/mol d = 3.10 g/mL 26