Homework Answers
Since the reaction title itself says that it's solvolysis reaction, where the t-butylchloride gets converted into a 3o carbocation first and then gets attacked by the solvent nucleophile, for example, if the solvent is water, then the product formed will be t-butylalcohol. Now, in the reaction of t-butylchloride with the solvent will totally depend on the concentration on the t-butylchloride since it is an SN1 type of reaction where the rate-determining step is the formation of the stable 3o carbocation and thus on next step when it reacts as an electrophile for the solvent, that time there is no dependence on the nucleophile molecule. That is why the concentration of the base has no contribution to the reaction rate or the product concentration, and this is why the less accurate NaOH solution can be used here.
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3. The concentration of sodium hydroxide in this experiment is approximately 2%. Why isn't it necessary...
can question B of B2 and B3 be answered please. information has also been provided B....
can
question B of B2 and B3 be answered please.
information has also been provided
B. Effect of Solvent on SN1 Reactivity B1. In 1. In the following table, record the time in seconds required for the pink color to disappear in each solvent mixture. Compositon (solvent:water) Reaction time in seconds Methanol Ethanol Acetone 6:175 non reachre 2:405 1.1 mL:0.9 mL (55:45) 1.2 mL:0.8 mL (60:40) 1.3 mL:0.7 mL (65:35) 1.4 mL:0.6 mL (70:30) 7:32 5 08 s 6:49 5:475...
In our experiment we will use three different substrates: 1°, n-butyl chloride; 2°, sec-butyl chloride; and...
In our experiment we will use three different substrates: 1°,
n-butyl chloride; 2°, sec-butyl chloride; and 3°, tert- butyl
chloride, and we will evaluate their reactivity and the rate of the
reaction in an SN1 reaction. We will use an acid-base indicator to
monitor the completion of the reaction and a salt, silver nitrate,
to obtain a precipitate. The success of the reaction is evidenced
by the change in color of the indicator (from orange to red) due to
the...
3. Why was the concentration of catechol in test tube 2 and 4? Caps Lo 448...
3. Why was the concentration of catechol in test tube 2 and
4?
Caps Lo 448 1. I You will determine 2. Why Shift 1 he sequence given in the Ctrl record whether or Activity 6 - Enzyme Inhibition This activity will investigate the inhibition of catechol oxidase by phenylthiourea (PTU). You w PTU is a competitive or noncompetitive inhibitor. 1. Write your hypothesis and prediction. 2. Obtain a bottle of PTU. 3. Using Table 6.1, prepare three experimental tubes....
Read the experiment and briefly describe what you would predict to be your result if you...
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...
Sn1 reactions are effected by solvent. Can you just explian what the predicted order will be...
Sn1 reactions are effected by solvent. Can you just explian what
the predicted order will be and why.
Arrange the four test tubes in the test tube stand. In the first test tube, add 1 mL 1: 1 of methanol: water solvent solution. In the second tube, add 1 mL of a 1: 1 ethanol: water solvent solution. In the third tube, add 1 mL of a 1: 1 1-propanol: water solvent solution. In the fourth and final tube, add...
4. Both high and low temperatures reduced the amount of color (product) produced. However, the cause...
4. Both high and low temperatures reduced the amount of color
(product) produced. However, the cause of the reduction is
different in the two cases. Explain what the differences are.
me. The wa Activity 2: temperature In this activity, you will examine the effect of different temperatures on the activity of the enzyme. and enzyme mixture must come to a specific tempera yme mixture must come to a specific temperature before the addition of the substrate. 1. Write your hypothesis...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone...
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...
Experiment 2 – The effect of temperature on the activity of catalase In this lab you...
Experiment 2 – The effect of temperature on the activity of catalase In this lab you will determine the effect of temperature on catalase activity Materials Yeast Measuring spoon 2 clean test-tubes hydrogen peroxide solution 10 ml graduated cylinder 2 balloons 1 beakers Permanent marker and tape / wax pencil stopwatch or timer crushed ice in a beaker/bowl Thermometer Procedure With a permanent marker, label tubes 1- 2. Fill each tube with 10 ml hydrogen peroxide. Place tube 1...
sn1: write the reactions for each of the secondary, tertiary, and aryl substrates Chemicals and Solvents,...
sn1: write the reactions for each of the secondary, tertiary, and
aryl substrates
Chemicals and Solvents, Chemical Abstract Service (CAS): (1) 1-chlorobutane, (109-69-3] (2) 1-bromobutane, (109-65-9) (3) 2-chlorobutane, (78-86-4) (4) 2-bromobutane, (78-76-2] (5) 2-chloro-2-methylpropane, (507-20-0) (6) bromobenzene, (108-86-1) (7) 2-bromo-2-methylpropane, (507-19-7) (8) ethanol, [64-17-5) 2. Sn1 Reaction. For the Sn1 reaction, the nucleophile is ethanol, introduced into the solution as the solvent in a silver nitrate-ethanol solution. If the reaction occurs, silver chloride or silver bromide will form a precipitate...
Weak acid-base indicator equilibria Step 1: Obtain a small test tube and add approximately 5mL wa...
Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
approximately 5mL water. Next, add 10 drops of a methyl
violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
can
question B of B2 and B3 be answered please.
information has also been provided
B. Effect of Solvent on SN1 Reactivity B1. In 1. In the following table, record the time in seconds required for the pink color to disappear in each solvent mixture. Compositon (solvent:water) Reaction time in seconds Methanol Ethanol Acetone 6:175 non reachre 2:405 1.1 mL:0.9 mL (55:45) 1.2 mL:0.8 mL (60:40) 1.3 mL:0.7 mL (65:35) 1.4 mL:0.6 mL (70:30) 7:32 5 08 s 6:49 5:475...
In our experiment we will use three different substrates: 1°,
n-butyl chloride; 2°, sec-butyl chloride; and 3°, tert- butyl
chloride, and we will evaluate their reactivity and the rate of the
reaction in an SN1 reaction. We will use an acid-base indicator to
monitor the completion of the reaction and a salt, silver nitrate,
to obtain a precipitate. The success of the reaction is evidenced
by the change in color of the indicator (from orange to red) due to
the...
3. Why was the concentration of catechol in test tube 2 and
4?
Caps Lo 448 1. I You will determine 2. Why Shift 1 he sequence given in the Ctrl record whether or Activity 6 - Enzyme Inhibition This activity will investigate the inhibition of catechol oxidase by phenylthiourea (PTU). You w PTU is a competitive or noncompetitive inhibitor. 1. Write your hypothesis and prediction. 2. Obtain a bottle of PTU. 3. Using Table 6.1, prepare three experimental tubes....
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...
Sn1 reactions are effected by solvent. Can you just explian what
the predicted order will be and why.
Arrange the four test tubes in the test tube stand. In the first test tube, add 1 mL 1: 1 of methanol: water solvent solution. In the second tube, add 1 mL of a 1: 1 ethanol: water solvent solution. In the third tube, add 1 mL of a 1: 1 1-propanol: water solvent solution. In the fourth and final tube, add...
4. Both high and low temperatures reduced the amount of color
(product) produced. However, the cause of the reduction is
different in the two cases. Explain what the differences are.
me. The wa Activity 2: temperature In this activity, you will examine the effect of different temperatures on the activity of the enzyme. and enzyme mixture must come to a specific tempera yme mixture must come to a specific temperature before the addition of the substrate. 1. Write your hypothesis...
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...
sn1: write the reactions for each of the secondary, tertiary, and
aryl substrates
Chemicals and Solvents, Chemical Abstract Service (CAS): (1) 1-chlorobutane, (109-69-3] (2) 1-bromobutane, (109-65-9) (3) 2-chlorobutane, (78-86-4) (4) 2-bromobutane, (78-76-2] (5) 2-chloro-2-methylpropane, (507-20-0) (6) bromobenzene, (108-86-1) (7) 2-bromo-2-methylpropane, (507-19-7) (8) ethanol, [64-17-5) 2. Sn1 Reaction. For the Sn1 reaction, the nucleophile is ethanol, introduced into the solution as the solvent in a silver nitrate-ethanol solution. If the reaction occurs, silver chloride or silver bromide will form a precipitate...
Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
approximately 5mL water. Next, add 10 drops of a methyl
violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
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