Homework Answers
6) Phenol react with neutral FeCl3 solution to give blue-violet color complex.
a) Neutral FeCl3 is used for Fe3+ test in aspirin synthesis.
b) Product give negative test with Fe3+ ions because aspirin is the product which don't have any phenolic OH group.
Add Answer to:
synthsis of asprin
6. Iron(III) ions are used as a qualitative test for phenols (aromatic compounds...
5. Iron(III) ions are used as a qualitative test for phenols (aromatic compounds containing an-OH functional group)...
5. Iron(III) ions are used as a qualitative test for phenols (aromatic compounds containing an-OH functional group). (1 point) a. What compound was used as a positive control for the Fe3+ test in this experiment? b. Did the reaction product give a positive or negative test with Fe3+ ions? Explain. 6. Acetic anhydride was used in excess in this experiment. What does this mean, and how was the excess acetic anhydride decomposed at the end of the reaction? (1 point)
Qualitative Analysis of Organic Compounds: Pre lab questions (5 pts) 1. (1 point) Identify the functional...
Qualitative Analysis of Organic Compounds: Pre lab questions (5 pts) 1. (1 point) Identify the functional groups based on color / odor a. Dark yellow to red color indicates that the functional group could possibly be------------- b. Fruity / Floral odor indicates that the functional group could possibly be------------- c. Fishy odor indicates that the functional group could possibly be------------- d. Sharp, biting odor indicates that the functional group could possibly be------------- 2. (0.5 pts) If a liquid is soluble...
for chromic acid test: Ethanol 2-propanol 2-methyl-2-propanol Cyclohexanol for iron chloride test: Ethanol 2-propanol 2-methyl-2-propanol Cyclohexanol...
for
chromic acid test:
Ethanol
2-propanol
2-methyl-2-propanol
Cyclohexanol
for iron chloride test:
Ethanol
2-propanol
2-methyl-2-propanol
Cyclohexanol
O-cresol
1. Chromic Acid Test Chromic Acid is orange. A positive test is indicated by a change in color Indicate which of the four compounds will give a positive result and why. 2. Iron (III) Chloride Test Only phenols give a positive result. Alcohols will not react. Only one of the listed compounds is a phenol. Which compound will give the positive result?
Qualitative analysis lab Give structures for the following aromatic compounds. e. p-methylphenol 2. Give structures for...
Qualitative analysis lab
Give structures for the following aromatic compounds.
e. p-methylphenol 2. Give structures for the following aromatic compounds: a. A (C H10) positive 2,4-DNP; positive iodoform. b. B (C,HO) insoluble in NAOH; positive 2,4-DNP; negative iodoform hot KMnO, oxidation yields p-methoxybenzoic acid. c. C (C,H0,) soluble in NaHCO oxidation with KMn0, yields phthalic acid; IR peak at 1690 cm d. D (C,H,0,) soluble in NaHCO oxidation with KMnO, yields phthalic acid; IR peak at 1710 cm e. E...
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages...
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages to this Advance Study Form ***** 1. a. The structure of cholesterol is shown below. Indicate if cholesterol is saturated or unsaturated. Explain your answer. b. What chemical tests would you run to determine if it saturated or unsaturated? Indicate what color changes you would expect. 2. Why don't we use Cl2 instead of Bra in the test for unsaturation? 3. Predict the product...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
BACKGROUND: Synthesis of Potassium Iron (III) Oxalate Hydrate Salt The iron(II) ions from Fe(NH4)2(SO4)2•6H2O will be precipitated as iron(II) oxalate. Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s) The su...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
I think it is Heptane-4-one.. but I am uncertain. If you answer please make sure it...
I think it is Heptane-4-one.. but I am uncertain.
If you answer please make sure it is a complete answer
regarding both parts
I will give a good review! Thanks
Preliminary Identification 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 best as possible 1. Physical properties a. Solid or liquid: Liquid b. Color: Colorless 2....
Write down your qualitative observations in the table below. Include relevant details such as color changes,...
Write down your qualitative observations in the table below. Include relevant details such as color changes, precipitation, etc. (10 marks) Naphthalene n-heptane 1-octene Unknown Solubility in H20 (room temp.) Not soluble Solubility in H20 (high temp.) Soluble Solubility in cyclohexane (room temp.) Not soluble Br2 test Orange colour persists Br2 test (hv) Orange colour persists KMnO4 test Purple colour persists AlCl3/CHCl3 test Blue coloured solid 1. What class of compounds (alkene, alkane or aromatic) does your unknown belong to? (10...
Question1: Introduction Three aromatic compounds that have ortho-para directing and activating substituents will be brominated. The...
Question1:
Introduction Three aromatic compounds that have ortho-para directing and activating substituents will be brominated. The extent of activation will be judged by the number of bromine atoms that add to the benzene ring in each case. For each of the compounds shown below you will work out if a mono- di- or tri- brominated derivative formed following treatment with acetic acid and bromine in hydrobromic acid. This will be determined by measuring the melting point and interpreting the H...
5. Iron(III) ions are used as a qualitative test for phenols (aromatic compounds containing an-OH functional group). (1 point) a. What compound was used as a positive control for the Fe3+ test in this experiment? b. Did the reaction product give a positive or negative test with Fe3+ ions? Explain. 6. Acetic anhydride was used in excess in this experiment. What does this mean, and how was the excess acetic anhydride decomposed at the end of the reaction? (1 point)
for
chromic acid test:
Ethanol
2-propanol
2-methyl-2-propanol
Cyclohexanol
for iron chloride test:
Ethanol
2-propanol
2-methyl-2-propanol
Cyclohexanol
O-cresol
1. Chromic Acid Test Chromic Acid is orange. A positive test is indicated by a change in color Indicate which of the four compounds will give a positive result and why. 2. Iron (III) Chloride Test Only phenols give a positive result. Alcohols will not react. Only one of the listed compounds is a phenol. Which compound will give the positive result?
Qualitative analysis lab
Give structures for the following aromatic compounds.
e. p-methylphenol 2. Give structures for the following aromatic compounds: a. A (C H10) positive 2,4-DNP; positive iodoform. b. B (C,HO) insoluble in NAOH; positive 2,4-DNP; negative iodoform hot KMnO, oxidation yields p-methoxybenzoic acid. c. C (C,H0,) soluble in NaHCO oxidation with KMn0, yields phthalic acid; IR peak at 1690 cm d. D (C,H,0,) soluble in NaHCO oxidation with KMnO, yields phthalic acid; IR peak at 1710 cm e. E...
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages to this Advance Study Form ***** 1. a. The structure of cholesterol is shown below. Indicate if cholesterol is saturated or unsaturated. Explain your answer. b. What chemical tests would you run to determine if it saturated or unsaturated? Indicate what color changes you would expect. 2. Why don't we use Cl2 instead of Bra in the test for unsaturation? 3. Predict the product...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
I think it is Heptane-4-one.. but I am uncertain.
If you answer please make sure it is a complete answer
regarding both parts
I will give a good review! Thanks
Preliminary Identification 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 best as possible 1. Physical properties a. Solid or liquid: Liquid b. Color: Colorless 2....
Write down your qualitative observations in the table below. Include relevant details such as color changes, precipitation, etc. (10 marks) Naphthalene n-heptane 1-octene Unknown Solubility in H20 (room temp.) Not soluble Solubility in H20 (high temp.) Soluble Solubility in cyclohexane (room temp.) Not soluble Br2 test Orange colour persists Br2 test (hv) Orange colour persists KMnO4 test Purple colour persists AlCl3/CHCl3 test Blue coloured solid 1. What class of compounds (alkene, alkane or aromatic) does your unknown belong to? (10...
Question1:
Introduction Three aromatic compounds that have ortho-para directing and activating substituents will be brominated. The extent of activation will be judged by the number of bromine atoms that add to the benzene ring in each case. For each of the compounds shown below you will work out if a mono- di- or tri- brominated derivative formed following treatment with acetic acid and bromine in hydrobromic acid. This will be determined by measuring the melting point and interpreting the H...
Most questions answered within 3 hours.
-
Dividing Partnership Net Loss
Leigh Meadows and Byron Leef formed a partnership in which the
partnership...
asked 26 seconds from now -
10. Two forces act on a 3 kg object, the gravitational force and
a second, constant...
asked 2 minutes ago -
Discuss how Entrepreneurial leadership style differs
from traditional leadership?
asked 25 minutes ago -
A futuristic design for a car is to have a large solid
disk-shaped flywheel within the...
asked 23 minutes ago -
Solid NaOH is added to a solution of 0.50 M acetic acid until
the pH of...
asked 26 minutes ago -
Which of the following statements is not a characteristic of the
Internal Revenue Code?
A) The...
asked 34 minutes ago -
Say true or false and explain it.
A heap is represented using an array. The array...
asked 44 minutes ago -
Explain how the DNA replication enzyme complex is organized and
functions, please don't copy paste from...
asked 43 minutes ago -
how
can personality contribute to one scoring high on the need to
evaluate measurement by Jarvis?
asked 45 minutes ago -
A high jumper is attempting to jump over a crossbar that is
placed at a height...
asked 49 minutes ago -
1.
A hemophiliac male mates with a healthy female. what are the
possible genotypes for the...
asked 1 hour ago -
You could argue that even though Rockefeller clearly had
enormous market power (90% of the market)...
asked 1 hour ago