During a proline catalyzed asymmetric aldol reaction I had an enantiomeric excess of 50.93% for polarimetry...
During a proline catalyzed asymmetric aldol reaction I had an enantiomeric excess of 50.93% for polarimetry data and 99.46% for gas chromatography. The same sample was used for both tests. Which data is more accurate and why?
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
During a proline catalyzed asymmetric aldol reaction I had an
enantiomeric excess of 50.93% for polarimetry...
please i have deadtime at 8:00am Problem 1 The following experimental data for a gas phase catalyzed reaction: A-B + C RunA (mole/gcat. h) PA (atm) Ps (atm) Pc (atm 0 4.5 27 54 112 229 4.5 54 2 0....
please i have deadtime at 8:00am
Problem 1 The following experimental data for a gas phase catalyzed reaction: A-B + C RunA (mole/gcat. h) PA (atm) Ps (atm) Pc (atm 0 4.5 27 54 112 229 4.5 54 2 0.275 0.50 0.77 0.77 0.50 0.275 0.77 5 3 6 10 10 8 10 A) Derive a rate law consistent with experimental data. Explain clearly your observations and indicate which runs you used to arrive to your conclusions. B) Evaluate the...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
please only do H-M. i have done everything else. 2. During the acid catalyzed polymerization of...
please only do H-M. i have done everything else.
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or...
1. During World War I, Germany used a "Big Bertha" cannon to hurl shells into Paris...
1. During World War I, Germany used a "Big Bertha" cannon to hurl shells into Paris 30 miles away. This gun also had a long barrel. What is the reason for using a long barrel in these guns? 2. Consider two less-than-desirable options. In the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. In the second option you are driving 30 mph and crash head-on into a stationary brick wall. In...
please help with- chem lab: Reaction Rates After Thought (1-4d) THANKS!! REACTION RATES The After Thought...
please help with- chem lab: Reaction Rates After Thought (1-4d)
THANKS!!
REACTION RATES The After Thought 1. Cross out the incorrect statement(s) dealing with factors affecting the rate of a chemical reaction. The rate of a chemical reaction increases: - with increasing concentration of a reactant since the number of collisions increases - with decreasing temperature since the activation energy is reduced - by pulverizing a reacting solid because its exposed surface area increases - with the addition of a...
I just need the blank data table with all the reactions shown. I need ALL 36...
I just need the blank data table with
all the reactions shown. I need ALL 36 spaces for reacting
solutions. I don't need the observations. Please
help.
ARE hem 310 LAB EXPERIMENT #6 Chemical Reactions: Double Replacements I. OBJECTIVES 1. To perform and record observations of some chemical reactions. 2. To gain skill in writing balanced equations from observations of chemical reactions using known reactants. 3. To look for ions that, if present, may cause the compounds to be insoluble...
F-test theory question. I just need help with # 32. Applications the Ftest in Excel, test...
F-test theory question. I just need help with # 32.
Applications the Ftest in Excel, test the set of data you created for Apri in Q17. Show that variances are significantly different April's and Betty's 1. Verity that the Welch-Satterthwaite formula yields the value 6.440 for Evan and Fred's data. To simplify the calculation, use the variances given in the Excel output. pose you measured dissolved CO, in Brand X soda and BrandY soda, and found that Brand X a...
Can you help me identify reagent (i), Compound 8 and Compound 12 in the reaction scheme?...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography?...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...
A student attempted to identify an unknown compound by the method used in this experiment. Her or...
A student attempted to identify an unknown compound by the method used in this experiment. Her original sample weight was 0.7047 g. When heated in the first step, the mass decreased to 0.4862 g Write the complete, net balanced reaction that would occur in this experiment if - the student's unknown compound was NaHCO3 -the student's unknown compound was KHCO3 Using stoichiometry, predict the theoretical yield of the solid chloride obtained at the end of the student's experiment if -...
please i have deadtime at 8:00am
Problem 1 The following experimental data for a gas phase catalyzed reaction: A-B + C RunA (mole/gcat. h) PA (atm) Ps (atm) Pc (atm 0 4.5 27 54 112 229 4.5 54 2 0.275 0.50 0.77 0.77 0.50 0.275 0.77 5 3 6 10 10 8 10 A) Derive a rate law consistent with experimental data. Explain clearly your observations and indicate which runs you used to arrive to your conclusions. B) Evaluate the...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
please only do H-M. i have done everything else.
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or...
please help with- chem lab: Reaction Rates After Thought (1-4d)
THANKS!!
REACTION RATES The After Thought 1. Cross out the incorrect statement(s) dealing with factors affecting the rate of a chemical reaction. The rate of a chemical reaction increases: - with increasing concentration of a reactant since the number of collisions increases - with decreasing temperature since the activation energy is reduced - by pulverizing a reacting solid because its exposed surface area increases - with the addition of a...
I just need the blank data table with
all the reactions shown. I need ALL 36 spaces for reacting
solutions. I don't need the observations. Please
help.
ARE hem 310 LAB EXPERIMENT #6 Chemical Reactions: Double Replacements I. OBJECTIVES 1. To perform and record observations of some chemical reactions. 2. To gain skill in writing balanced equations from observations of chemical reactions using known reactants. 3. To look for ions that, if present, may cause the compounds to be insoluble...
F-test theory question. I just need help with # 32.
Applications the Ftest in Excel, test the set of data you created for Apri in Q17. Show that variances are significantly different April's and Betty's 1. Verity that the Welch-Satterthwaite formula yields the value 6.440 for Evan and Fred's data. To simplify the calculation, use the variances given in the Excel output. pose you measured dissolved CO, in Brand X soda and BrandY soda, and found that Brand X a...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...
A student attempted to identify an unknown compound by the method used in this experiment. Her original sample weight was 0.7047 g. When heated in the first step, the mass decreased to 0.4862 g Write the complete, net balanced reaction that would occur in this experiment if - the student's unknown compound was NaHCO3 -the student's unknown compound was KHCO3 Using stoichiometry, predict the theoretical yield of the solid chloride obtained at the end of the student's experiment if -...
Most questions answered within 3 hours.
-
Cisco packet tracer
Q1) Do you get any changes of IP address when packet is
traversing...
asked 37 minutes ago -
What is the pressure inside a 33.0 L container holding 106.4 kg
of argon gas at...
asked 1 hour ago -
Question no 2
A housekeeping support department budgets its costs at
SR 40,000 per month plus...
asked 1 hour ago -
A 1400Kg sports car accelerates from rest to 90km/h in 7.0s.
What is the average power...
asked 2 hours ago -
For the following reaction, 0.128 moles of
potassium hydrogen sulfateare mixed with
0.504 moles of potassium...
asked 5 hours ago -
1. What is the present value of $400, three years in the future
if the interest...
asked 6 hours ago -
The labor force minus the number of employed equals the number
of unemployed.
a. True
b....
asked 8 hours ago -
Determine the mass in units of grams​ [g] of 0.49 moles​ [mol]
of a new fictitious...
asked 8 hours ago -
A horizontal mass of M=5kg is on a spring and stretched to
x=0.5m when released from...
asked 9 hours ago -
26 of 50
"I have worked at the Arizona Humane Society for ten years, and
have...
asked 10 hours ago -
Compare and contrast zero based budgeting and incremental (or
base year) budgeting.
asked 10 hours ago -
4 pts 10. Which of the following hypothesis would be MOST
difficult to test experimentally? Group...
asked 10 hours ago