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POST-LAB QUESTIONS 1. A compound of molecular formula CH..0 forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent...
Test Performed Observations Conclusion for Particular Test: Aldehyde/Ketone/Inconclusive (1 pt) Shiff's reagent (1 pt) Tollen's reagent...
Test Performed Observations Conclusion for Particular Test: Aldehyde/Ketone/Inconclusive (1 pt) Shiff's reagent (1 pt) Tollen's reagent appearance of a dark pink color in solution formation of a silver/grey precipitate formation of a red precipitate fcmation of a bright orange / red precipitate Fehling reagent (1 pt) 2,4-DNP (3 pt) Melting point range of 232 - 235°C 2,4-DNP derivative ID of unknown: pts) 24. Based on the observations / results given in the table below, and by consulting Table 1 on...
Chem foundation level 9. An organic compound X, CsH100 is optically active. X forms a yellow...
Chem foundation level
9. An organic compound X, CsH100 is optically active. X forms a yellow precipitate when tested with 2,4- dinitrophenylhydrazine. X reduces Tollen's reagent but X does not form any precipitate with alkaline iodine. a) What functional group is present in X? b) Suggest another test to confirm the presence of the functional group named in (a) c) Draw the structural formula of X and name X 10. State the observation when butanal is reacted with Tollen's reagent....
Use the information below to fill in the charts on the 1st screenshot and then answer...
Use the information below to fill in the charts on the 1st
screenshot and then answer the questions on the 2nd screenshot.
UNKNOWN #: 399
2,4-dinitrophenylhydrazine Test: solution remains
colorless
Fehling’s Test: solution remains colorless
Lucas test: solution became cloudy immediately when
reagent was added
Tollen’s test: solution remains colorless
Iodoform Test: solution remains colorless
Bordwell-Wellman Test: no rxn was observed
UNKNOWN #: 499
2,4-dinitrophenylhydrazine Test: solution changed to a
yellow-orange color with some precipitation
Fehling’s Test: solution changed to...
How do you calculate the empirical and molecular formula of this unknown compound ? How do you calculate the molecular...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown #6 Physical Properties 210 200 BP 131-133 °C White solid Sweet odor C 79.22 % H = 5.70% 180 Sodium Fusion Tests ervable cha pordon of the sodium fusion filtrate was treated with ferrous state and heated. It was then acidified with dilute sulfuric acid. No observable ona was noticed. Another portion of the sodium fusion...
How do you calculate the empirical and molecular formula of this unknown compound ? How do...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # Physical Properties MP 48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sodium fusion filtrate was treated and heated. It was then acidified wit was noticed. filtrate was treated with ferrous sulfate acidified with dilute sulfuric acid. No observable change Another portion of the sodium fus observable change was...
How do you calculate the empirical and molecular formula of this unknown compound ? How do...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H-7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change was noticed. Another portion of the sodium fusion filtrate was treated with...
1. Part 2 white complete structures for the major product(s) resulting from the following reactions. Ao...
1. Part 2 white complete structures for the major product(s) resulting from the following reactions. Ao Propanal + 2,4-dinitrophenylhydrazine --- 2-hexanol + ZnCl2 + HCI ----.. . . isopropyl alcohol + CrO3/H2S04 --- 1-butene + Br2/CH2Cl2 → In the space below, draw structures for the following: a. Bromobenzene b. Butanal Acetophenone Benzaldehyde e. Aniline 3. The following observations are frequently made in the laboratory. In each case below state in The following cheer brief terms, the deduction or deductions which...
EXPERIMENT 4 Organic Families - Reactions and Identification of Functional Groups PART A. Reactions of Alkanes and Alkenes 1. Action of Bromine Water Observation Organic Compound cyclohexene c...
EXPERIMENT 4 Organic Families - Reactions and Identification of Functional Groups PART A. Reactions of Alkanes and Alkenes 1. Action of Bromine Water Observation Organic Compound cyclohexene cyclohexane Equations: Write an equation for the above compounds which caused a decolourisation of bromine water. Name and draw all reactants and products. Distinguishing Test for Primary, Secondary and Tertiary Alcohols PART B. 1. Lucas Test for Alcohols Organic Compound tert-pentanol (2-methyl 2-butanol) 2-pentanol Observation 1-pentanol Equations: Write an equation for the above...
13. What can you say about an unknown compound that gave a pouldve test with 2...
13. What can you say about an unknown compound that gave a pouldve test with 2 hydrazine and a positive test with the Jones Reseat? now compound that gave a pouldve test with 2,4-dinitrophenyl 14 What can you say about sa unknown compound when dissolved in distilled water and tested with peper, pave an estimated pH of about 81. 15. What can you say about an unknown compound that turned a wet plece al blue litmus red? 16. What can...
please identify the unknown and write a derivative Unknown compound 3 Clear liquid Physcial Properties Solubility...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
Test Performed Observations Conclusion for Particular Test: Aldehyde/Ketone/Inconclusive (1 pt) Shiff's reagent (1 pt) Tollen's reagent appearance of a dark pink color in solution formation of a silver/grey precipitate formation of a red precipitate fcmation of a bright orange / red precipitate Fehling reagent (1 pt) 2,4-DNP (3 pt) Melting point range of 232 - 235°C 2,4-DNP derivative ID of unknown: pts) 24. Based on the observations / results given in the table below, and by consulting Table 1 on...
Chem foundation level
9. An organic compound X, CsH100 is optically active. X forms a yellow precipitate when tested with 2,4- dinitrophenylhydrazine. X reduces Tollen's reagent but X does not form any precipitate with alkaline iodine. a) What functional group is present in X? b) Suggest another test to confirm the presence of the functional group named in (a) c) Draw the structural formula of X and name X 10. State the observation when butanal is reacted with Tollen's reagent....
Use the information below to fill in the charts on the 1st
screenshot and then answer the questions on the 2nd screenshot.
UNKNOWN #: 399
2,4-dinitrophenylhydrazine Test: solution remains
colorless
Fehling’s Test: solution remains colorless
Lucas test: solution became cloudy immediately when
reagent was added
Tollen’s test: solution remains colorless
Iodoform Test: solution remains colorless
Bordwell-Wellman Test: no rxn was observed
UNKNOWN #: 499
2,4-dinitrophenylhydrazine Test: solution changed to a
yellow-orange color with some precipitation
Fehling’s Test: solution changed to...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown #6 Physical Properties 210 200 BP 131-133 °C White solid Sweet odor C 79.22 % H = 5.70% 180 Sodium Fusion Tests ervable cha pordon of the sodium fusion filtrate was treated with ferrous state and heated. It was then acidified with dilute sulfuric acid. No observable ona was noticed. Another portion of the sodium fusion...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # Physical Properties MP 48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sodium fusion filtrate was treated and heated. It was then acidified wit was noticed. filtrate was treated with ferrous sulfate acidified with dilute sulfuric acid. No observable change Another portion of the sodium fus observable change was...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H-7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change was noticed. Another portion of the sodium fusion filtrate was treated with...
1. Part 2 white complete structures for the major product(s) resulting from the following reactions. Ao Propanal + 2,4-dinitrophenylhydrazine --- 2-hexanol + ZnCl2 + HCI ----.. . . isopropyl alcohol + CrO3/H2S04 --- 1-butene + Br2/CH2Cl2 → In the space below, draw structures for the following: a. Bromobenzene b. Butanal Acetophenone Benzaldehyde e. Aniline 3. The following observations are frequently made in the laboratory. In each case below state in The following cheer brief terms, the deduction or deductions which...
EXPERIMENT 4 Organic Families - Reactions and Identification of Functional Groups PART A. Reactions of Alkanes and Alkenes 1. Action of Bromine Water Observation Organic Compound cyclohexene cyclohexane Equations: Write an equation for the above compounds which caused a decolourisation of bromine water. Name and draw all reactants and products. Distinguishing Test for Primary, Secondary and Tertiary Alcohols PART B. 1. Lucas Test for Alcohols Organic Compound tert-pentanol (2-methyl 2-butanol) 2-pentanol Observation 1-pentanol Equations: Write an equation for the above...
13. What can you say about an unknown compound that gave a pouldve test with 2 hydrazine and a positive test with the Jones Reseat? now compound that gave a pouldve test with 2,4-dinitrophenyl 14 What can you say about sa unknown compound when dissolved in distilled water and tested with peper, pave an estimated pH of about 81. 15. What can you say about an unknown compound that turned a wet plece al blue litmus red? 16. What can...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
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