Homework Answers
Observation 1: Compound is insoluble in water and also in adding NaOH
Compound is not ionic and not acid as acid form sodium salt with NaOH and gets water soluble
Observation 2:acidic chromate test resulted in green color
Indicates presence of primary or secondary alcohol which gets converted in acid or ketone.
Since its water insoluble that means it alcohol has high molar mass
Observation 3: No mirror formation with Tollens test
Indicates aldehyde group is absent
Conclusion
Possibility of the compound is High molar mass primary or secondary alcohol
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Suppose you have obtained the following observation for an unknown compound A. Observation 1: The unknown...
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble...
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble in alkaline water (aq. NaOH) Positive acidic chromate test (color turns from orange to green) Positive Tollens' test (mirror formation) pH <6 pH 7 pH >8
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble...
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble in alkaline water (aq. NaOH) Positive acidic chromate test (color turns from orange to green) Positive Tollens' test (mirror formation) OpH<6 Орн 7 pH>8
Pretest #2 An unknown compound with formula C H O gave a sooty flame when burned...
Pretest #2 An unknown compound with formula C H O gave a sooty flame when burned tip of a spatula. When reacted with 2,4-dinitrophenylhydrazine an orange-rec precipitate resulted. The unknown also gave a positive test with the Tollens a Schiffs reagenta. When a fow drops of the unknown was added to the reddish. Reagent, a blue-green color resulted. The mass spectrum of the unknown is ah below. 100 83 43 40 Ills 50 20 30 60 70 80 90 100...
Can you help me determine if I am correct and help me find the ither answers...
Can
you help me determine if I am correct and help me find the ither
answers to this functional group lab worksheet?
18 w paper 1 we by addin trecome char Discussion of Properties and Test Ora general undergo dition reactions, whereas by substitution reactions. These two types of d e beds and womate compounds we characterized described in equation form as follows: action Addition Reaction Substitution Reaction (Note: numbers in boxes to the left refer to w in the...
Reactions of Carboxylic Acids and Their Derivatives Part A. Carboxylic Acid Salts 1. Salt Formation Compound...
Reactions of Carboxylic Acids and Their Derivatives Part A. Carboxylic Acid Salts 1. Salt Formation Compound Solvent Solubility Benzoic acid Cold Water Benzoic acid 10% NaOH 2. Salt Hydrolysis Sodium acetate solution changed the color of litmus from to Questions 1. Write an equation that accounts for the solubility of benzoic acid in aqueous base. 2. What would you expect to happen if a solution of sodium benzoate were acidified? Write an equation. 3. Explain how a water-insoluble organic acid...
I am given the following information about an unknown compound and need to answer questions A...
I am given the following information about an unknown compound and need to answer questions A and B. Help please! Unknown Number: 21 Physical Properties: Solid or Liquid: Solid Color: White Crystals Ignition Test: Flammability: Non-flammable Manner of melting: no residue Odor of Gases: n/a Bellstein Test (testing for halogens): Green flame Melting Point: 63 oC Boiling Point: n/a Solubility : H2O: Insoluble 5% or 10% NaOH: Soluble 5% or 10% HCl: Insoluble 5% or 10% NaHCO3: Soluble Reactivity with...
1.) What would the product be if you oxidized a tertiary alcohol? A.) Ketone B.) Aldehyde...
1.) What would the product be if you oxidized a tertiary
alcohol?
A.) Ketone
B.) Aldehyde
C.)Carboxylic Acid
D.) No reaction
2.) What would the FULLY oxidized product of a primary alcohol
be?
A.) No reaction
B.) Carboxylic Acid
C.) Aldehyde
D.) Ketone
3.) Which types of alcohol can be oxidized? Choose all that
apply.
A.) Quaternary
B.) Primary
C.) Secondary
D.) Tertiary
4.) the Ethanol standard in test tube 3 will have a final
concentration of _____%(v/v) ethanol.
5.)...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier #4 (All unknowns are nonelectrolytes, soi-1) Determination of the freezing point of pure l-butyl alcohol: (Record time-temperature data on the next page) 29.62 1. Mass of empty test tube 2. Mass of test tube and t-butyl alcohol after determination of freezing point of pure t-butyl alcohol 50.25 20.71 3. Mass of t-butyl alcohol Determination of the molar mass of an unknown: (Record time-temperature data...
can you pls help me identifiy the correct unknown ans explain why this is the know...
can you pls help me identifiy the correct unknown ans explain
why this is the know for the unknown its not 2phenylethanol.
halogens is absent, differntiate is absent , nitrogen test is
absent, sulfure is absent, Br2 is absent, kmno4 absent, ignition
test absent . 2,3 dnp contains ketone ,tollens no aldehdye absent
aldehyde , iodoform test contains carbonyl in it .
Melting point of solid ("C) (leave blank if liquid at RT): 57 degrees Celsius Boiling point of liquid...
FUNCTIONAL GROUPS IDENTIFICATION LAB Professor Burton decided to select two unknowns from Group 1 (299 &...
FUNCTIONAL GROUPS IDENTIFICATION LAB
Professor Burton decided to select two unknowns from Group 1
(299 & 399) and two unknowns from Group 2 (499 & 699).
Below are the descriptions of his observations/results for each
unknown.
UNKNOWN #: 299
2,4-dinitrophenyl hydrazine Test: solution remains
colorless
Fehling’s Test: solution remains colorless
Lucas test: observed solution in 5-min intervals for 20
min., the solution remains
colorless
Tollen’s test: solution remains colorless
Iodoform Test: solution remains colorless
Bordwell-Wellman Test: solution became quite...
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble in alkaline water (aq. NaOH) Positive acidic chromate test (color turns from orange to green) Positive Tollens' test (mirror formation) pH <6 pH 7 pH >8
Question 8 (1 point) Select all that would apply for 1-octanol OH Soluble in water Soluble in alkaline water (aq. NaOH) Positive acidic chromate test (color turns from orange to green) Positive Tollens' test (mirror formation) OpH<6 Орн 7 pH>8
Pretest #2 An unknown compound with formula C H O gave a sooty flame when burned tip of a spatula. When reacted with 2,4-dinitrophenylhydrazine an orange-rec precipitate resulted. The unknown also gave a positive test with the Tollens a Schiffs reagenta. When a fow drops of the unknown was added to the reddish. Reagent, a blue-green color resulted. The mass spectrum of the unknown is ah below. 100 83 43 40 Ills 50 20 30 60 70 80 90 100...
Can
you help me determine if I am correct and help me find the ither
answers to this functional group lab worksheet?
18 w paper 1 we by addin trecome char Discussion of Properties and Test Ora general undergo dition reactions, whereas by substitution reactions. These two types of d e beds and womate compounds we characterized described in equation form as follows: action Addition Reaction Substitution Reaction (Note: numbers in boxes to the left refer to w in the...
Reactions of Carboxylic Acids and Their Derivatives Part A. Carboxylic Acid Salts 1. Salt Formation Compound Solvent Solubility Benzoic acid Cold Water Benzoic acid 10% NaOH 2. Salt Hydrolysis Sodium acetate solution changed the color of litmus from to Questions 1. Write an equation that accounts for the solubility of benzoic acid in aqueous base. 2. What would you expect to happen if a solution of sodium benzoate were acidified? Write an equation. 3. Explain how a water-insoluble organic acid...
1.) What would the product be if you oxidized a tertiary
alcohol?
A.) Ketone
B.) Aldehyde
C.)Carboxylic Acid
D.) No reaction
2.) What would the FULLY oxidized product of a primary alcohol
be?
A.) No reaction
B.) Carboxylic Acid
C.) Aldehyde
D.) Ketone
3.) Which types of alcohol can be oxidized? Choose all that
apply.
A.) Quaternary
B.) Primary
C.) Secondary
D.) Tertiary
4.) the Ethanol standard in test tube 3 will have a final
concentration of _____%(v/v) ethanol.
5.)...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier #4 (All unknowns are nonelectrolytes, soi-1) Determination of the freezing point of pure l-butyl alcohol: (Record time-temperature data on the next page) 29.62 1. Mass of empty test tube 2. Mass of test tube and t-butyl alcohol after determination of freezing point of pure t-butyl alcohol 50.25 20.71 3. Mass of t-butyl alcohol Determination of the molar mass of an unknown: (Record time-temperature data...
can you pls help me identifiy the correct unknown ans explain
why this is the know for the unknown its not 2phenylethanol.
halogens is absent, differntiate is absent , nitrogen test is
absent, sulfure is absent, Br2 is absent, kmno4 absent, ignition
test absent . 2,3 dnp contains ketone ,tollens no aldehdye absent
aldehyde , iodoform test contains carbonyl in it .
Melting point of solid ("C) (leave blank if liquid at RT): 57 degrees Celsius Boiling point of liquid...
FUNCTIONAL GROUPS IDENTIFICATION LAB
Professor Burton decided to select two unknowns from Group 1
(299 & 399) and two unknowns from Group 2 (499 & 699).
Below are the descriptions of his observations/results for each
unknown.
UNKNOWN #: 299
2,4-dinitrophenyl hydrazine Test: solution remains
colorless
Fehling’s Test: solution remains colorless
Lucas test: observed solution in 5-min intervals for 20
min., the solution remains
colorless
Tollen’s test: solution remains colorless
Iodoform Test: solution remains colorless
Bordwell-Wellman Test: solution became quite...
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