A) Identify the molecular ion peak and the base peak. m/z of molecular ion peak m/z of base peak B) Draw an arrow-pushing mechanism that produces the fragment with m/z = 183. Draw an arrow-pushing mechanism for the fragmentation resulting in the peak at m/z = 43. Why do some signals appear in M, M+2 pairs while others do not?

Consider the reaction below and answer the question below the reaction. A student performed a synthesis of ethyl 4-aminobenzoate (C) as shown in the reaction above. The student added 1.20 g of 4-aminobenzoic acid and 12.0 mL of ethanol together in the presence of sulfuric acid. The reaction mixture was heated to reflux for a period of 45 minutes. H₂N OH 4-aminobenzoic acid MM 137.14 g/m ol A 77.7% 56.1 % 128 % 72.2 % + CH3CH₂OH ethanol MM 46.10 g/mol H+ H₂N OCH₂CH3 + H₂O ethyl 4-aminobenzoate MM 165.19 g/mol C B Let's assume the theoretical yield of the reaction is 7.22 g and the student produced 5.61 g of ethyl 4-aminobenzoate. What is the percent yield of the reaction?

Fumaric bromination 2.5 mL 10% bromine was added to 0.200g of fumaric acid. Calculate the limiting reagent and % yield of the reaction. NB: use density to find the mass of bromine.

Consider the reaction below and answer the question below the reaction. A student performed a synthesis of ethyl 4-aminobenzoate (C) as shown in the reaction above. The student added 1.20 g of 4-aminobenzoic acid and 12.0 mL of ethanol together in the presence of sulfuric acid. The reaction mixture was heated to reflux for a period of 45 minutes. H₂N OH 4-aminobenzoic acid MM 137.14 g/m ol 2.44 g 1.21 g 3.24 g 1.45 g + CH3CH₂OH ethanol MM 46.10 g/mol B H+ H₂N OCH₂CH3 + H₂O ethyl 4-aminobenzoate MM 165.19 g/mol A с What is the theoretical yield for the reaction?

2 NO₂(g) → N₂ O₁ (g) O 2511041 O > 0 O ▲,$, O A.S. Q Search 9999 100 # on D KELIAV G 24 G

A Н Н H3C H H Н B CH₁ Lit cu H Br C A Et₂O + ?? 0°C BrMg. В СО BrMg. HH Н.С 2 с CH₂ BrMg. D

ity College-CHM 101 (Section 90) - Spring20 - MARX > Activities and Due Dates > Ch 7 HW O Assignment Score: O Resources Ly Give Up? 50.1% O Hint Check Answer < Question 16 of 28 The combustion of ethane (C,H.) produces carbon dioxide and steam. 2 C,H,(s) +70,(g) → 4 CO,(g) + 6 H, O(g) How many moles of CO, are produced when 5.05 mol of ethane is burned in an excess of oxygen? moles of CO,: mol terms of use contactus help about us carecrs privacy policy MacBook A

Name the type of reaction CI CI CI CH;CH,C=CCH, CH C CH,CH,C=CCH, CH,Cl, CH,CH,C-CCH, CI Cl CI If only 1 equivalent, if 2 equivalents or eXcess, here reaction reaction to here O Halogenation O Hydrogenation O Hydrohalogenation O Hydration

Rank from most to least reactive in an EAS reaction H 1. II. O=0 Br ||| A.IV>II>I> ||| B.II> IV> | > | C.II>IV>I> ||| D.I>>> IV IV