A student wanted to prepare an alkane by adding a proton to a carbocation. Basing on...
A student wanted to prepare an alkane by adding a proton to a carbocation. Basing on your knowledge of carbocations, would the student have been successful? Explain your reasoning.
Homework Answers
Carbocarions are sp2 hybridized carbons, because of thier the empty p orbitals they are electron deficient. Thus, the carbocation will not accept protons as protons are as well electron deficient. Carbocation and proton will not react, so the student wouldn't able to make alkane by reacting carbocation and proton.
Insted, if student react cabocation aith hydride (H-, proton with two electrons) then it is possible to make alkane from carbocation.
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A student wanted to prepare an alkane by adding a proton to a
carbocation. Basing on...
Page < 4 > of 6 ZOOM 8. A student prepares a buffer by adding 0.05...
Page < 4 > of 6 ZOOM 8. A student prepares a buffer by adding 0.05 mol of potassium hydroxide to 0.10 mol of phenol (PhOH, pka = 10.0) to make 1.0 L of an aqueous solution. (a) What is the weak acid in this buffer? (b) What is the weak base in this buffer? (c) What is the pH of this buffer? Do not use any equations. Instead, explain your reasoning in words.
Discuss the effect of each of these “experimental errors” on the calculated Cs, metal. EXPLAIN your reasoning. a. A student measures the mass of the water+calorimeter before adding the metal, and righ...
Discuss the effect of each of these “experimental errors” on the calculated Cs, metal. EXPLAIN your reasoning. a. A student measures the mass of the water+calorimeter before adding the metal, and right as the metal is dropped in, some water splashes out. b. A student takes the metal out of the hot water bath, c/and allows it to cool a little before placing it into the DI water in the calorimeter.
of the following acids, which one would be least likely to donate urs proton due to...
of the following acids, which one would be least likely to
donate urs proton due to the unstable conjugate base?
1. which is the donatable hydrogen for each of the given
structures?
2. what is the hybridization of the atom to which the
donatable hydrogen is attached?
3. do any of the atoms identified in question 2 have a
positive charge? if so explain why this is not a good thing and
makes the hydrogen more donatable as opposed to...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. 4. Below is...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. 4. Below is the structure of your product, benzocaine, with protons labelled A-E. The 'H NMR spectrum is provided on the next page. Describe the multiplicity (with J values) and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, C or D? Draw resonance OSO structures of benzocaine to explain your reasoning. NH2E
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3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. oi melon ping...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. oi melon ping 4. Below is the structure of a chalcone, with protons labelled 1-8. The THNMR spectrum is provided on the next page and lettered A-H for clarity. Describe the multiplicity and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, 4 or 5? Draw resonance structures to explain your reasoning 5 a
Answer the following questions to complete your Results and Discussion section for this experiment. HBr HBr...
Answer the following questions to complete your Results and Discussion section for this experiment. HBr HBr A B Br Br 1 2 2. Does a more negative heat of formation (a larger negative number) mean that a compound formation? Draw an energy diagram that illustrates this. more stable or less stable than an isomer with a less negative heat of Drawing this on paper and uploading an image is recommended 3. There is a third bromobutene structure that could have...
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As a student of BBA imagine you have decided to become entrepreneur. You came up with a great ideas in your business plan to start your own company. Identify the key decisions you need to be a successful entrepreneur and the information you need for the business processes. Apply the value chain concept to your business and explain how it would perform the various primary and support activities.
As a student of BBA imagine you have decided to become entrepreneur. You came up with...
As a student of BBA imagine you have decided to become entrepreneur. You came up with a great ideas in your business plan to start your own company. a. Identify the key decisions you need to be a successful entrepreneur and the information you need for the business processes. b. Apply the value chain concept to your business and explain how it would perform the various primary and support activities.
Make sure that the following questions are answered in your submitted lab report. A student has...
Make sure that the following questions are answered in your submitted lab report. A student has an unknown liquid the theoretical density of which is 1.34 g/mL. He determines the experimental density of the liquid using the method described in the procedure for this experiment Tell whether each of the following errors would cause the experimental value of the density of the liquid to be too large, too small, or unchanged relative to the true value. Explain your reasoning in...
Page < 4 > of 6 ZOOM 8. A student prepares a buffer by adding 0.05 mol of potassium hydroxide to 0.10 mol of phenol (PhOH, pka = 10.0) to make 1.0 L of an aqueous solution. (a) What is the weak acid in this buffer? (b) What is the weak base in this buffer? (c) What is the pH of this buffer? Do not use any equations. Instead, explain your reasoning in words.
of the following acids, which one would be least likely to
donate urs proton due to the unstable conjugate base?
1. which is the donatable hydrogen for each of the given
structures?
2. what is the hybridization of the atom to which the
donatable hydrogen is attached?
3. do any of the atoms identified in question 2 have a
positive charge? if so explain why this is not a good thing and
makes the hydrogen more donatable as opposed to...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. 4. Below is the structure of your product, benzocaine, with protons labelled A-E. The 'H NMR spectrum is provided on the next page. Describe the multiplicity (with J values) and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, C or D? Draw resonance OSO structures of benzocaine to explain your reasoning. NH2E
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. oi melon ping 4. Below is the structure of a chalcone, with protons labelled 1-8. The THNMR spectrum is provided on the next page and lettered A-H for clarity. Describe the multiplicity and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, 4 or 5? Draw resonance structures to explain your reasoning 5 a
Answer the following questions to complete your Results and Discussion section for this experiment. HBr HBr A B Br Br 1 2 2. Does a more negative heat of formation (a larger negative number) mean that a compound formation? Draw an energy diagram that illustrates this. more stable or less stable than an isomer with a less negative heat of Drawing this on paper and uploading an image is recommended 3. There is a third bromobutene structure that could have...
Make sure that the following questions are answered in your submitted lab report. A student has an unknown liquid the theoretical density of which is 1.34 g/mL. He determines the experimental density of the liquid using the method described in the procedure for this experiment Tell whether each of the following errors would cause the experimental value of the density of the liquid to be too large, too small, or unchanged relative to the true value. Explain your reasoning in...
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