1. An unknown compound was known to be toluene, cyclohexane or cyclohexene. It burned with a...
1. An unknown compound was known to be toluene, cyclohexane or cyclohexene. It burned with a very sooty flame and when bromine in dichloromethane was added to the sample, the brown color remained. What was the unknown? Explain why you made the choice you did.
2.Paul has test results of a sooty flame when burned and a positive reaction to sulfuric acid. He states that his unknown is cyclohexane. What was wrong about his conclusion?
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1. An unknown compound was known to be toluene, cyclohexane or
cyclohexene. It burned with a...
QUESTION 1 A student was given a bottle containing an unknown compound known to be an...
QUESTION 1 A student was given a bottle containing an unknown compound known to be an alcohol, an alkane, an alkene, or an aromatic The student tested the compound with Br2, and found that the brown bromine drops very quickly turned clear. The student then tested the compound with a solution of KMnO in water and found that the purple color quickly turned to a dark brown color Ignition of a small sample burned with a luminous yellow flame and...
C. REACTION WITH BROMINE Hydrocarbon Observations of Bromine Addition Balanced Equation for Addition Reaction Cyclohexane CHI...
C. REACTION WITH BROMINE Hydrocarbon Observations of Bromine Addition Balanced Equation for Addition Reaction Cyclohexane CHI Cyclohexene CHIO Toluene C-Hs Unknown Hydrocarbon Positive test: the red from the bromine goes away Negative test: the red stays 3. Which classes of compounds cannot perform addition reactions? D. REACTION WITH POTASSIUM PERMANGANATE Hydrocarbon Observations of KMnO. Addition Balanced Equation for Oxidation Reaction Cyclohexane C6H12 Cyclohexene C.Hjo Toluene C Hs Unknown Hydrocarbon Positive test: purple color goes away and turns brown (two layers)...
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...
Problems and questions 1. Explain why methanol is an amanic compound but is not considered a...
Problems and questions 1. Explain why methanol is an amanic compound but is not considered a hydrocarbon 2. Examine your observations from part. Which of the hydrocarbon samples (methanol is not a hydrocarbon) had the cleanest burning flame? Which had the most smoker so? Why did these luydrocar hans burn differently? 3. Write the complete balanced equation for the combustion of the following compounds: a) methanol b) cyclohexane c) cyclohexene d) toluene 4. Classify each reaction in part Cas an...
Suppose you are assigned two unknowns, Compound A and Compound B. One unknown is a fat,...
Suppose you are assigned two unknowns, Compound A and Compound B. One unknown is a fat, and the other is an oil. You dissolve a small amount of Compound A in cyclohexane. After you add 4 drops of a cyclohexane solution containing bromine, the reaction mixture retains the bromine color. When you add the bromine solution to Compound B, the bromine color remains after you add 1 drop of the test solution. Which substance, Compound A or Compound B, is...
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 # 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...
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...
can you help me identify this organic unknown compound by name through justification of the given...
can you help me identify this organic unknown compound by name
through justification of the given data below? Please and thank
you
Melting point of solid ("C) (leave blank if liquid at RT): 64 Boiling point of liquid (C) (leave blank if solid at RT): THEIM The results from sodium fusion and follow up ion tests (578) Predicted color Nitrogen test clear Sulfur test clear Halogen test ppt clear Differentiate halogen ion test clear The results of unsaturation tests and...
What is the empirical and molecular formula ? What is the molecular weight ? Computer Unknown...
What is the empirical and molecular formula ? What is the
molecular weight ?
Computer Unknown # 9 Physical Properties MP 206-210 °C White solid C 77.86 % H=11.76 % Sodium Fusion Test A purtion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No obeervable change was noticed. Another portion of the sodium fusion filtrate was treated with lead acetate. No observable change was noticed. Another portion was...
QUESTION 1 A student was given a bottle containing an unknown compound known to be an alcohol, an alkane, an alkene, or an aromatic The student tested the compound with Br2, and found that the brown bromine drops very quickly turned clear. The student then tested the compound with a solution of KMnO in water and found that the purple color quickly turned to a dark brown color Ignition of a small sample burned with a luminous yellow flame and...
C. REACTION WITH BROMINE Hydrocarbon Observations of Bromine Addition Balanced Equation for Addition Reaction Cyclohexane CHI Cyclohexene CHIO Toluene C-Hs Unknown Hydrocarbon Positive test: the red from the bromine goes away Negative test: the red stays 3. Which classes of compounds cannot perform addition reactions? D. REACTION WITH POTASSIUM PERMANGANATE Hydrocarbon Observations of KMnO. Addition Balanced Equation for Oxidation Reaction Cyclohexane C6H12 Cyclohexene C.Hjo Toluene C Hs Unknown Hydrocarbon Positive test: purple color goes away and turns brown (two layers)...
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...
Problems and questions 1. Explain why methanol is an amanic compound but is not considered a hydrocarbon 2. Examine your observations from part. Which of the hydrocarbon samples (methanol is not a hydrocarbon) had the cleanest burning flame? Which had the most smoker so? Why did these luydrocar hans burn differently? 3. Write the complete balanced equation for the combustion of the following compounds: a) methanol b) cyclohexane c) cyclohexene d) toluene 4. Classify each reaction in part Cas an...
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 # 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...
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...
can you help me identify this organic unknown compound by name
through justification of the given data below? Please and thank
you
Melting point of solid ("C) (leave blank if liquid at RT): 64 Boiling point of liquid (C) (leave blank if solid at RT): THEIM The results from sodium fusion and follow up ion tests (578) Predicted color Nitrogen test clear Sulfur test clear Halogen test ppt clear Differentiate halogen ion test clear The results of unsaturation tests and...
What is the empirical and molecular formula ? What is the
molecular weight ?
Computer Unknown # 9 Physical Properties MP 206-210 °C White solid C 77.86 % H=11.76 % Sodium Fusion Test A purtion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No obeervable change was noticed. Another portion of the sodium fusion filtrate was treated with lead acetate. No observable change was noticed. Another portion was...
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