Question

6) In the synthesis of bromopropane we used NaBr and H2S04. Why the reaction does not work with only NaBr? 7) The following is a reaction you will see in second semester organic chemistry. The molecular weight of methyl benzoate is 136.16 g/mol and the molecular weight of the product is 181.15 g/mol. COCH3 COCH3 HNO3 i H2SO4 NO2 methyl benzoate methyl 3-nitrobenzoate Assume you have excess acid and you start off with 2.4 g of methyl benzoate. What is the theoretical yield (in grams) of methyl 3-nitrobenzoate? *Show all work and BOX your final answer. Significant figures and units count.

Answer 1

propanol Synthesis of bromopropane from using NaBr 4 th soy. on NaBr 12304, Br • Here-on group of propanol is bad leaving group In presence of acid tasoy it is converted to good leaving group, so if we use only Naror then reaction does nor occure oy the - - He - for Bromopropone Mke Reaction, coochy HNO3 LO 4,504 2 I 136.16 g/mol 181115 g/mol Now if we use 136.16 g/mol of methyl benzoate we get lol.15-81 mol of monitomethylbenzoak. Now I we use 2.4 g of methyl benzoate I then theoretical yield is calculated as follows. 136.16 = 181.15 9 X (cross multiplication 2 .4 T .. Theoretical field (x) = 2 4 8 181.15 36.16 = 3.19 am of pproduct = 3.19 - . Theoretical yield gm.