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 more likely to be an oil? Explain concisely.
Homework Answers
Oils are unsaturated and fat are saturated. Oil decolorize the bromine solution as bromine add on double bonds but fat doesn't.
Since, compound A doesn't decolorize bromine solution hence compound A is fat and compound B is oil.
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Suppose you are assigned two unknowns, Compound A and Compound
B. One unknown is a fat,...
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...
Identification of the negative ion in the unknown solution From your test results, what negative ion (anion) is...
Identification of the negative ion in the unknown solution From your test results, what negative ion (anion) is present in your unknown? Explain your choice. Testing for Cations and Anions Report Sheet Questions and Problems Q.1 How do the tests on known solutions containing cations and anions make it possible for you to identify the cations or anions in an unknown substance? Q2 You hive a solution that is composed of either NaCl or CaCl, What tests would you run...
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
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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...
please identify the unknown and write a derivative Unknown compound 3 Clear liquid Physcial Properties Solubility...
please identify the unknown and write a derivative
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please help An unknown compound X is one of the three compounds listed in the table...
please help
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Process A. Preparation of 4-t-butylcyclohexene Assembling the equipment Fill the almost complete sand bath, place it...
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In this lab, you will quantitatively estimate the protein concentration in the following 3 unknown samples:...
In this lab, you will quantitatively estimate the protein concentration in the following 3 unknown samples: 1. Milk 2. Diet drink 3. High protein health food drink. Before you do the lab, you are expected to know the following: 1. How will you make the dilutions of the provided standard protein BSA (Bovine Serum Albumin) in the microfuge (1.7 ml small) tubes? Draw the chart for the same. 3 marks 2. How will you make the dilutions for the above...
I concluded that my unknown was Pb2+. since yellow precipitate formed. can you help me answer...
I concluded that my unknown was Pb2+. since yellow
precipitate formed. can you help me answer the questions for the
Known and unknown report
Qualitative Analysis: Group I Cations 10 ORECTIVES A Leam some chemistry of Group I cations, R Analyze an unknown for Group I cations. THEORY AND DISCUSSION Group I cations are precipitated as insoluble chlorides: Ag, Pb, Hg2 +Cr-AgCl, PbCh, HgCla The colors of the following species will be helpful in the analysis for Group I cations....
Name Date Experiment5 Identification of Unknowns: PRELAB 1. In this experiment you will do qualitative analyses...
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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...
Identification of the negative ion in the unknown solution From your test results, what negative ion (anion) is present in your unknown? Explain your choice. Testing for Cations and Anions Report Sheet Questions and Problems Q.1 How do the tests on known solutions containing cations and anions make it possible for you to identify the cations or anions in an unknown substance? Q2 You hive a solution that is composed of either NaCl or CaCl, What tests would you run...
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...
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...
please help
An unknown compound X is one of the three compounds listed in the table below. A mixture of X with trans-cinnamic acid melts from 126-130°C, a mixture of X with decanedioic acid melts from 131-132°C, and a mixture of X with 2-furancarboxylic acid melts from 121-133°C. Give the identity of X and explain your reasoning. Type your answer in the box given below. Compound m.p... °C decanedioic acid 131-133 trans-cinnamic acid 132-135 2-furancarboxylic acid 132-134 You are fractionally...
Process A. Preparation of 4-t-butylcyclohexene Assembling the equipment Fill the almost complete sand bath, place it on the base of the shelf, fix the thermometer with a clip and start heating until the temperature of the sand is - 110C. B. Mixing the reagents Using the plastic funnel, introduce 0.60-0.70 g of 4-t-butylcyclohexanol into a large, clean, dry test tube. Then add 10 drops of concentrated phosphoric acid, 3 drops of concentrated sulfuric acid and a pebble to moderate boiling....
In this lab, you will quantitatively estimate the protein concentration in the following 3 unknown samples: 1. Milk 2. Diet drink 3. High protein health food drink. Before you do the lab, you are expected to know the following: 1. How will you make the dilutions of the provided standard protein BSA (Bovine Serum Albumin) in the microfuge (1.7 ml small) tubes? Draw the chart for the same. 3 marks 2. How will you make the dilutions for the above...
I concluded that my unknown was Pb2+. since yellow
precipitate formed. can you help me answer the questions for the
Known and unknown report
Qualitative Analysis: Group I Cations 10 ORECTIVES A Leam some chemistry of Group I cations, R Analyze an unknown for Group I cations. THEORY AND DISCUSSION Group I cations are precipitated as insoluble chlorides: Ag, Pb, Hg2 +Cr-AgCl, PbCh, HgCla The colors of the following species will be helpful in the analysis for Group I cations....
Name Date Experiment5 Identification of Unknowns: PRELAB 1. In this experiment you will do qualitative analyses to determine the identity of unknown compounds What oes qualitative analysis mean? What does quantitative analysis mean? 2. Use the flow chart to answer the following questions (A-E) A. Which non-water-soluble compound produces bubbles of gas when vinegar B. Which two water-soluble compounds produce bubbles of gas when vinegar is added? C. Carefully examine the chemical formulas of the three compounds you just named...
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