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5) You have been given an unknown that gives a positive 2,4-dinitrophenylhydrazine test. a) What does...
je 2.4-dinitrophenylhyd 5) You have been given an unknown that gives a positive 2,4-dinitrophen a) What...
je 2.4-dinitrophenylhyd 5) You have been given an unknown that gives a positive 2,4-dinitrophen a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the un identity? c) What would you see in the subsequent tests, and what would your observa about the identity of the unknown?
1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of molecule would give a positive test and what a positive result would...
1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of molecule would give a positive test and what a positive result would look like. DNP: Solubility Beilstein: Ignition: 2. (2 pts) For the 2,4-dinitrophenylhydrazine test, write a chemical reaction between that reagent and one of the "known" compounds that would give a positive result. 17
1. (6 pts) These are some of the preliminary...
POST-LAB QUESTIONS 1. A compound of molecular formula CH..0 forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent...
POST-LAB QUESTIONS 1. A compound of molecular formula CH..0 forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent and a yellow precipitate with reagents for the iodoform test, draw the structural formula for this compound. 2. What kind of results do you see when the following compounds are mixed together with the given test solution? a) with 2,4-dinitrophenylhydrazine with chromic with chromic acid with 12-KI reagent CH3CH2CH with Tollens' reagent 3. Write the structure of the compound that gives a silver mirror...
An unknown substance had a positive reaction with 2,4-DNP test. The unknown reacted like a secondary...
An unknown substance had a positive reaction with 2,4-DNP test. The unknown reacted like a secondary alcohol with the Lucas reagent. It was negative with the Iodoform and Benedict's test. What possible functional groups does the unknown contain? -primary alcohol -secondary alcohol -tertiary alcohol -ketone -aldehyde -methyl -none tested I answered ketone and aldehyde. I did not receive full credit. I also answered secondary, tertiary, ketone, and acetone, but did not receive full credit.
2) You just been given an unknown organic liquid and told that it is either propanal,...
2) You just been given an unknown organic liquid and told that it is either propanal, cyclohexanone, or butylamine. Name ONE chemical test("odor" is NOT a chemical test because it is much too subjective) you could perform on the unknown to prove it was propanal, AND state what would you observe in that test to support your answer. BE SPECIFIC ABOUT YOUR OBSERVATIONS. Name ONE chemical test (A DIFFERENT TEST FROM THE ONE YOU JUST NAMED ABOVE) you could perform...
2) You just been given an unknown organic liquid and told that it is either propanal,...
2) You just been given an unknown organic liquid and told that it is either propanal, cyclohexe or butylamine. Name ONE chemical test (odor" is NOT a chemical test because it is much too subjective) could perform on the unknown to prove it was propanal, AND state what would you observe in the test to support your answer. BE SPECIFIC ABOUT YOUR OBSERVATIONS Name ONE chemical test (A DIFFERENT TEST FROM THE ONE YOU JUST NAMED ABOVE) you could perform...
please answer #3,4. #1,2 uploaded for context/info about the lab. 1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of mol...
please answer #3,4. #1,2 uploaded for context/info about the
lab.
1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of molecule would give a positive test and what a positive result would look like. DNP: Solubility Beilstein: Ignition: 2. (2 pts) For the 2,4-dinitrophenylhydrazine test, write a chemical reaction between that reagent and one of the "known" compounds that would give a positive result....
Pre-lab: If your unknown was 2-bromooctanoic acid, what would you expect the results of the following...
Pre-lab: If your unknown was 2-bromooctanoic acid, what would you expect the results of the following tests to be? Solubility in: H2O NaOH NaHCO3 HCl H2SO4 Jones Oxidation Test: 2,4-DNP Test: Flame Test: Beilstein Test:
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown...
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown yields a positive Jones test. Which of these could be the unknown? (Multiple answers possible) 2pts o 엉 ㅇ A B C D 14) An unknown yields a positive DNPH test and a negative Tollens test. Which of these is the unknown? 2pts H . مرز A D С B 15) What tests would be positive for the following molecule? 2pts i. H
Experiment 9: The Preparation of Unknown Derivatives0k Homework Due in a day Pre-Lab Questions Qu...
Experiment 9: The Preparation of Unknown Derivatives0k Homework Due in a day Pre-Lab Questions Question1 Homework Unanswered If your unknown compound is an alcohol and not a phenol, what derivatives can you make to verify the identity of the unknown assuming there is melting point data for the derivative in the Blue book? Choose all that apply. Multiple answers: You can select more than one option O A phenylurethane derivative O B benzamide derivative O C2,4-dinitrophenylhydrazone (2,4-DNP) derivative o D...
je 2.4-dinitrophenylhyd 5) You have been given an unknown that gives a positive 2,4-dinitrophen a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the un identity? c) What would you see in the subsequent tests, and what would your observa about the identity of the unknown?
1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of molecule would give a positive test and what a positive result would look like. DNP: Solubility Beilstein: Ignition: 2. (2 pts) For the 2,4-dinitrophenylhydrazine test, write a chemical reaction between that reagent and one of the "known" compounds that would give a positive result. 17
1. (6 pts) These are some of the preliminary...
POST-LAB QUESTIONS 1. A compound of molecular formula CH..0 forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent and a yellow precipitate with reagents for the iodoform test, draw the structural formula for this compound. 2. What kind of results do you see when the following compounds are mixed together with the given test solution? a) with 2,4-dinitrophenylhydrazine with chromic with chromic acid with 12-KI reagent CH3CH2CH with Tollens' reagent 3. Write the structure of the compound that gives a silver mirror...
2) You just been given an unknown organic liquid and told that it is either propanal, cyclohexanone, or butylamine. Name ONE chemical test("odor" is NOT a chemical test because it is much too subjective) you could perform on the unknown to prove it was propanal, AND state what would you observe in that test to support your answer. BE SPECIFIC ABOUT YOUR OBSERVATIONS. Name ONE chemical test (A DIFFERENT TEST FROM THE ONE YOU JUST NAMED ABOVE) you could perform...
2) You just been given an unknown organic liquid and told that it is either propanal, cyclohexe or butylamine. Name ONE chemical test (odor" is NOT a chemical test because it is much too subjective) could perform on the unknown to prove it was propanal, AND state what would you observe in the test to support your answer. BE SPECIFIC ABOUT YOUR OBSERVATIONS Name ONE chemical test (A DIFFERENT TEST FROM THE ONE YOU JUST NAMED ABOVE) you could perform...
please answer #3,4. #1,2 uploaded for context/info about the
lab.
1. (6 pts) These are some of the preliminary tests that you will be doing on days 1-2. For each test, write down what type of molecule would give a positive test and what a positive result would look like. DNP: Solubility Beilstein: Ignition: 2. (2 pts) For the 2,4-dinitrophenylhydrazine test, write a chemical reaction between that reagent and one of the "known" compounds that would give a positive result....
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown yields a positive Jones test. Which of these could be the unknown? (Multiple answers possible) 2pts o 엉 ㅇ A B C D 14) An unknown yields a positive DNPH test and a negative Tollens test. Which of these is the unknown? 2pts H . مرز A D С B 15) What tests would be positive for the following molecule? 2pts i. H
Experiment 9: The Preparation of Unknown Derivatives0k Homework Due in a day Pre-Lab Questions Question1 Homework Unanswered If your unknown compound is an alcohol and not a phenol, what derivatives can you make to verify the identity of the unknown assuming there is melting point data for the derivative in the Blue book? Choose all that apply. Multiple answers: You can select more than one option O A phenylurethane derivative O B benzamide derivative O C2,4-dinitrophenylhydrazone (2,4-DNP) derivative o D...
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