Question

Solubility Experiment: оноо m ochode dochode 4-methoxyphenol sodium -choch ochod Consider the compounds above (some of which we studied in our last experiment). For each of the molecules listed below: 1. State whether the compound is soluble in water. In one sentence, explain your answer. 2. IF the compound reacts with dilute HCl, show the reaction mechanism and product(s). Then, briefly explain if that reaction causes the solubility to change. If the compound does not react with dilute HCl, do nothing. 3. IF the compound reacts with dilute NaOH, show the reaction mechanism and product(s). Then, briefly explain if that reaction causes the solubility to change. If the compound does not react with dilute NaOH, do nothing. A. Heptanoic Acid B. Citric acid

Answer 1

| 0 Hektanoic acid 17 No, it is insoluble in water due to larger alkyl chair (7-c). [Non polar] (2) No reaction o rot Nat i onat insoluble V 120 W Sodium salt s, how Sodium hektanoate (soluble) is water soluble because it is now Salt containing the and ove fart.. Being holar dissolves is folar. Solvent B Citric acid 1 Yes, due to presence of 3 carboxylic and 1 alcohotee group which forms H-bonding with water

• No reaction Ho = 3 500 for wat 1 DOS tacoe Coonat Soluble o Nat Highly soluble After reaction with Maolt solubility of Citric acid increases many times due to formation of highly charged, holar sodium salt of citric aid. c Aniline Hydrochlice 1) Yes, it is water soluble because it is a salt containing the and -ve found (Polar). 1) No reacties OH Soluble (insolible) + Nach After reaction with Nach, anitine forms which due to larger hydrophobie non- polar ring becomes water insoluble D] Sodium salicylate Yes being salt soluble. lộ t + H 2 OH Coonet Coo soluble I twach insoluble After reacting with Her, it forms notast hoorly soluble salicylic acid. 04 NaOH O Not tho coonet. OH coonatt soluble highly soluble) After reaction with Naoh it forms highly soluble Sodium salt, due to presence of Disodium ion, its solubility increases many times . 1) Con salt. E) — ми, со 1) Yes, water soluble due to

NAOH 11) No reaction 1) the theo A CNH₂ HR OH u toho soluble A soluble. trall After Naoh reaction it fooms Methylamine which is also water soluble due to Esetensive hydrogen bonding with water .