Question

what possible funcitonal group can i Have?

Unknown #1: Preliminary identification (20 Points) You have been given an unknown compound. In the first part of this lab, you will examine the physical properties, solubility, and elemental analysis of the unknown. Fill out the information below as bet as possible. A successful determination of the functional group in your unknown compound is dependent upon the following examinations. You will be graded on how accurate and diligent you perform. At the final step you must predict two potential function group that your compound might contain AND explain your reason for choosing that function group. DO NOT SEPARATE/TEAR THE PAGES OF THE UNKNOWN EXAMINATION! possible in examinations. You wirstion group that your compos PAGES OF THE UNKN Unknown Number: 3 1. Physical Properties (5 points): Solid or Liquid: Solid Color: White Crystalline Acid Ignition Test: Flammability: Yellow, sooty flame Manner of melting: Black residue Odor of Gases: Honey-like odor Bellstein Test (testing for halogens): No green flame Melting Point: 130-133 °C Boiling Point: 2. Solubility (5 points): H2O: Insoluble 5% or 10% NaOH: Soluble 5% or 10% HCl: Insoluble 5% or 10% NaHCO3: Soluble Reactivity with H2SO4: No Reaction 3. Elemental Analysis (Sodium Fusion) (5 points): Nitrogen: Negative Bromine: Negative Chlorine: Negative 4. Prediction of functional group present and reasoning why (5 points)

what functional group can i have? please explain thank you

Answer 1

1) Ar-OH (Phenol AlaOH Ar-o Nat +H₂O (Sodium phenoxide) Ar Coonat + ho + CO2 (2) Ar-Cool + Natro And

# compound produces sooty flame. this confirms it is an aromatic compound.

# this is further supported by its insolubility in water, due to larger phenyl ring.

# insolubility in acid further confirms, it is an acid compound. # it reacts with sodium bicarbonate. So, it must be a carboxylic acid.

# it also reacts with Sodium Hydroxide. so there are chances it could be phenol as well.