2.12 Identify the Lewis acid and base in the reaction below and draw a curved arrow mechanism for the process. I + I CI- CI AI CI CI e cl Al 1 6- CI

Malic acid (H,CHO) derives its name from the genus name for apples (Malus), from which it was first isolated. It is the main acid in many fruits (including apricots, cherries, peaches and pears) and is widely used as a food additive to enhance sweetness or tartness. Malic acid is a diprotic acid with pK 3.40 and pK, = 5.11 at 25°C. !3! al Calculate the following for a o.20 M malic acid solution at 25°C. pH= %3D [HC,H 0,]= [HC,H,O,1=

3.27 For each pair of structures below, identify the stronger acid, and explain your choice: H H N=H -N H H H (a) (c) H -" :0 H ΝΞΗ I H ΗΘΗ `N' H CONTA ΘΝ H (b) (d) H H H N H I H

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For each of the molecules shown below, draw the acid dissociation reaction. If a conjugate base has resonance structures, draw all valid resonance structures. AH B C ہو A & B H B & C CF3 A & C H+ + Identify the stronger acid in each of the pairs below; provide an explanation for each pair. H+ + H+ +

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Unanswered •1 attempt left • Due on Mar 12 Which of the following compound could NOT act as a Lewis base? H2O OH^- NH3 D NH4^+ НF

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2- 3C₂² 1 Write the acidic equilibrium equation for CCI₂HCOOH. Be sure to include the proper phases for all species within the reaction. + 2 (s) H₂O ap here or pull up for additional resources 3 H ( Reset 4 (1) Question 62 of 75 O LO 5 ) 6 x H₂O CI 7 (g) 8 OH 9 12 (aq) C X 0 LTE 23% Submit