An unknown compound is highly water soluble, forms a silver mirror in the Tollens’ test, and forms a red precipitate in the Benedict’s test. Which of the following compounds is consistent with this data?
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An unknown compound is highly water soluble, forms a silver mirror in the Tollens’ test, and forms a red precipitate i...
help 4. An unknown compound's semicarbazone melts at 162-165 °C. The compound does not give a...
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4. An unknown compound's semicarbazone melts at 162-165 °C. The compound does not give a silver mirror in the Tollens' test. On reaction with KI/I,,NaOH/H2O no straw yellow precipitate forms. Identify the unknown. Explain your reasoning.
4. An unknown compound's semicarbazone melts at 162-165 °C. The compound does not give a silver mirror in the Tollens' test. On reaction with KI/I,,NaOH/H2O no straw yellow precipitate forms. Identify the unknown. Explain your reasoning.
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...
Most soluble in water Least soluble in water Answer Bank Lom non-ionosen no-l_connom no-le H-O-OCHE CH3CH2---0-OCH,CH,CH...
Most soluble in water Least soluble in water Answer Bank Lom non-ionosen no-l_connom no-le H-O-OCHE CH3CH2---0-OCH,CH,CH C-OCH,CH.CH HC-0-OCH.CH HC-C-OCH
a water soluble compound turns red litmus blue 3.SIThe following observations are frequently made in the...
a water soluble compound turns red litmus blue
3.SIThe following observations are frequently made in the lab. In each case below Istate in brief terms, the deduction or deductions which may be made. Las to the nature of the compound under study? a) water solable compound tumsa I red litmus to blue b.) when a small piece of sodium metal. was place in a test tube containing Talla uid unknown, a small stream Of bubble was Bbserved, TC.) an unknown...
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...
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...
PreLab - ID of Liquid Unknown 1. A liquid which is soluble in water, 5% aq....
PreLab - ID of Liquid Unknown 1. A liquid which is soluble in water, 5% aq. NaOH and 5% aq. HCl is suspected of being an amine. What feature of the solubility tests would confirm whether or not it is an amine? Explain. 2. While the effect is generally small enough to he neglected, what variable of laboratory conditions can alter the measured boiling point temperature of the liquid? 3. Match the letter of the functional group to the description...
IDENTIFICATION of an UNKNOWN ORGANIC COMPOUND PRE LAB QUESTIONS DATE NAME 1. Circle AND name four...
IDENTIFICATION of an UNKNOWN ORGANIC COMPOUND PRE LAB QUESTIONS DATE NAME 1. Circle AND name four different functional groups in the compound to the right Macrocyclic lactone ring н сн N сн но. Нас Cн, O HO -O -он CH3 Hyc-OH CH3 Cн HyC OCH OH CH CH3 "сна 2. You have an unknown containing five carbon atoms, has a pH of 6, yields a yellow solution having no precipitate in a 2,4-DNP test, and produces a Jell-O like blue-green...
What is the empirical and molecular formula ? What is the molecular weight ? omputer Unknown...
What is the empirical and molecular formula ? What is the
molecular weight ?
omputer Unknown #10 Physical Properties MP48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sedium fi ltrate was treated with and heated. It was then acidified wit was noticed rate was treated with ferrous sulate o acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with te observable change was noticed. on...
Please answer all parts. The elemental analysis of an Unknown reveals that compound X contains only...
Please answer all parts.
The elemental analysis of an Unknown reveals that compound X contains only the three elements C, H, & O and that the molecular weight is m/z = 148. Also, consider the (i) IR and (ii) proton NMR spectra of the unknown compound "X" provided. Briefly, yet completely interpret the two parts (1) IR & (ii) proton NMR and then in (iii) the elemental analysis, including unsaturation calculation of the unknown. Finally, determine by a circle which...
help
4. An unknown compound's semicarbazone melts at 162-165 °C. The compound does not give a silver mirror in the Tollens' test. On reaction with KI/I,,NaOH/H2O no straw yellow precipitate forms. Identify the unknown. Explain your reasoning.
4. An unknown compound's semicarbazone melts at 162-165 °C. The compound does not give a silver mirror in the Tollens' test. On reaction with KI/I,,NaOH/H2O no straw yellow precipitate forms. Identify the unknown. Explain your reasoning.
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...
Most soluble in water Least soluble in water Answer Bank Lom non-ionosen no-l_connom no-le H-O-OCHE CH3CH2---0-OCH,CH,CH C-OCH,CH.CH HC-0-OCH.CH HC-C-OCH
a water soluble compound turns red litmus blue
3.SIThe following observations are frequently made in the lab. In each case below Istate in brief terms, the deduction or deductions which may be made. Las to the nature of the compound under study? a) water solable compound tumsa I red litmus to blue b.) when a small piece of sodium metal. was place in a test tube containing Talla uid unknown, a small stream Of bubble was Bbserved, TC.) an unknown...
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...
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...
PreLab - ID of Liquid Unknown 1. A liquid which is soluble in water, 5% aq. NaOH and 5% aq. HCl is suspected of being an amine. What feature of the solubility tests would confirm whether or not it is an amine? Explain. 2. While the effect is generally small enough to he neglected, what variable of laboratory conditions can alter the measured boiling point temperature of the liquid? 3. Match the letter of the functional group to the description...
IDENTIFICATION of an UNKNOWN ORGANIC COMPOUND PRE LAB QUESTIONS DATE NAME 1. Circle AND name four different functional groups in the compound to the right Macrocyclic lactone ring н сн N сн но. Нас Cн, O HO -O -он CH3 Hyc-OH CH3 Cн HyC OCH OH CH CH3 "сна 2. You have an unknown containing five carbon atoms, has a pH of 6, yields a yellow solution having no precipitate in a 2,4-DNP test, and produces a Jell-O like blue-green...
What is the empirical and molecular formula ? What is the
molecular weight ?
omputer Unknown #10 Physical Properties MP48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sedium fi ltrate was treated with and heated. It was then acidified wit was noticed rate was treated with ferrous sulate o acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with te observable change was noticed. on...
Please answer all parts.
The elemental analysis of an Unknown reveals that compound X contains only the three elements C, H, & O and that the molecular weight is m/z = 148. Also, consider the (i) IR and (ii) proton NMR spectra of the unknown compound "X" provided. Briefly, yet completely interpret the two parts (1) IR & (ii) proton NMR and then in (iii) the elemental analysis, including unsaturation calculation of the unknown. Finally, determine by a circle which...
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