You have five different tubes and each tube has a different sample, which are cyclohexane, methylcyclohexane,...
You have five different tubes and each tube has a different sample, which are cyclohexane, methylcyclohexane, toluene, ethylbenzene and cumene. You add 1 drop of HCl and 5 drops of bromide-bromate solution (10:1 KBr:KBrO3) to each tube. Predict the order in which the color of the solutions in the tube should chance (reaction occurs) and justify.
Homework Answers
KBrO3 + 5 KBr + 6 HCl 
3 Br2 + 6KCl +. 3H2O
Bromination takes place via free radical substitution reaction .
Stability order of free radical is 3° > 2° > 1 °
Benzylic free radicals are more stable than aliphatic free radicals .
Reactivity order is :
(Least reactive )
Cyclohexane < methylcyclohexane < toluene < ethylbenzene < cumene . (Most reactive )
The most reactive will observe color change faster .
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You have five different tubes and each tube has a different
sample, which are cyclohexane, methylcyclohexane,...
In this experiment you will be measuring pH for several different solutions. A pH probe will...
In this experiment you will be measuring pH for several
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You will be testing the pH of six solutions: deionized water,
0.1 M HCl, 0.1 M HCH3COO, 0.1 M NaCH3COO, 0.1
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You will measure the pH of each solution three times:
Neat - just the solution
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The concentration of a diluted
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Enter your answer with 2 significant figures.
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Can someone help me with the color reactions, positive and negative control, and the 6 questions?...
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1.) What would the product be if you oxidized a tertiary alcohol? A.) Ketone B.) Aldehyde...
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A.) Ketone
B.) Aldehyde
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2.) What would the FULLY oxidized product of a primary alcohol
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B.) Carboxylic Acid
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D.) Ketone
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A.) Quaternary
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C.) Secondary
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In this experiment you will be measuring pH for several
different solutions. A pH probe will be used rather than pH paper
as it will be more accurate.
You will be testing the pH of six solutions: deionized water,
0.1 M HCl, 0.1 M HCH3COO, 0.1 M NaCH3COO, 0.1
M NaOH, and a buffer made by mixing equal parts of
HCH3COO and NaCH3COO.
You will measure the pH of each solution three times:
Neat - just the solution
After the...
The concentration of a diluted
"wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the
dilution was done as described in Part B of the procedure for this
lab, what was the original concentration of ethanol in the "wine"?
Enter your answer with 2 significant figures.
B. Preparation of Unknown Samples 1. Label two small test tubes "wine" and "breath”. 2. Use a disposable pipette, add 1.0 mL (25 drops) of “wine” solution to the wine test tube. a....
Can someone help me with the color reactions, positive
and negative control, and the 6 questions?
Sudan IV Test for Lipid 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each tube, add the materials listed in Table 3. 3. Add five drops of water to tube 1 and five drops of Sudan IV to each of the remaining tubes. Mix...
Read the experiment and briefly describe what you would predict
to be your result if you were to perform this experiment and
why.
Part A: Determination of Factors Affecting the Relative Rates of Sy2 Reactions All test tubes must be dry. Effect of Structure of the Alkyl Halide Measure 2 mL of 15% sodium iodide in acetone into each of three clean, dry 10-cm test tubes. Add 2 drops of 1-bromobutane (butyl bromide) to the first test tube; add 2...
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1.) What would the product be if you oxidized a tertiary
alcohol?
A.) Ketone
B.) Aldehyde
C.)Carboxylic Acid
D.) No reaction
2.) What would the FULLY oxidized product of a primary alcohol
be?
A.) No reaction
B.) Carboxylic Acid
C.) Aldehyde
D.) Ketone
3.) Which types of alcohol can be oxidized? Choose all that
apply.
A.) Quaternary
B.) Primary
C.) Secondary
D.) Tertiary
4.) the Ethanol standard in test tube 3 will have a final
concentration of _____%(v/v) ethanol.
5.)...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
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