After a wittig reaction I had 0.158 g. My initial weight was 0.97g of benzyltriphenylphosphonium chloride...
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After a wittig reaction I had 0.158 g. My initial weight was 0.97g
of benzyltriphenylphosphonium chloride...
what would be the percent yield if the final weight of my product is 0.1357g this...
what would be the percent yield if the final weight of my product
is 0.1357g this is a green chemistry wittig reaction to produce
1,4-diphenyl-1,3-butadiene from benzyltriphenylphosphonium chloride
and trans- cinnamaledyde using sodium hydroxide as the base
You will be using a Green Chemistry Wittig reaction (NOT Wittig-Horner Emmons reaction) to produce 1,4-diphenyl-1,3-butadiene starting with benzyltriphenylphosphonium chloride and trans- cinnamaledyde using sodium hydroxide as the base. This reaction is considered a "green" reaction, because an aqueous solution will be used...
What is the percent yield of the lab procedure below? my final weight of the product is 0.0519 g
what is the percent yield of the lab procedure below?
my final weight of the product is 0.0519 g
sure of the proper disposal methodl, properly Check with your laboratory insructor if you are PROCEDURE Be sure to dry the 5-mL reaction vial in the oven for at least twenty minutes. Water is experiment. this Preparation of the Ylide 1. Place 0.480 g of benzyltriphenylphosphonium chloride in a dry, 5-mlL reaction vial containing a magnetic spin vane Add 2 mL...
Calculate the percent yield if you start with 0.220 mL trans-cinnamaldeyde and 0.6643 g benzyltriphenylphosphonium chloride...
Calculate the percent yield if you start with 0.220 mL trans-cinnamaldeyde and 0.6643 g benzyltriphenylphosphonium chloride in 1.5 mL 10 N NaOH and isolate 0.2137 g 1,4- diphenyl-1,3-butadiene. Show ALL your calculations! (3 points) (Hint: first you need to compare the moles of the substrates to know which substrate is the limited reagent. Then you calculate the percent yield by comparing the moles of the product with the theoretical yield (moles of the limited reagent).
63 cle OLI KPO photo d) K,PO, H2 Phyp-C 9-anthraldehyde M.W.. 20624 g/mol 9-(2-phenylethenyanthracene Benzyltriphenylphosphonium chloride...
63 cle OLI KPO photo d) K,PO, H2 Phyp-C 9-anthraldehyde M.W.. 20624 g/mol 9-(2-phenylethenyanthracene Benzyltriphenylphosphonium chloride M.W. = 388.88 g/mol Phyp=g m.p. 104-105°C M.W. 280.4 g/mol m.p. - 130-132°C Benzyltriphenylphosphonium ylide QUESTIUNI Which compound is not a possible limiting reagent? o toluene 9-anthraldehyde benzyltriphenylphosphonium chloride o K3PO4 QUESTION 2 What is the theoretical yield, in moles, of 9-(2-phenylethyl)anthracene if the limiting reagent for this reaction is a 50% miv solution of NaOH and 0.266 mL are used as a base?...
tthe weight of my product is 0.87 g and they gave me the density! how can...
tthe weight of my product is 0.87 g and they gave me the
density! how can i calculte the percent yield?
- Page < 8 > of 14 | 0 Data and Observations Weight of product: Melting range of product: Attach any spectra to your laboratory report Calculations and Graphs Calculate the percent yield. Keep in mind that the reagents may not be 100% pure; refer to labels on the containers. The density of 50% aqueous sodium hydroxide is 1.5...
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride...
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride in 2 mL 10 N NaOH and isolate 0.206 g (E,E)-1,4-diphenyl-1,3-butadiene. Show ALL your calculations! (Hint: first you need to compare the moles of the substrates to know which substrate is the limited reagent. Then you calculate the percent yield by comparing the moles of the product with the theoretical yield (moles of the limited reagent).)
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride...
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride in 2 mL 10 N NaOH and isolate 0.206 g (E,E)-1,4-diphenyl-1,3-butadiene. Show ALL your calculations! (Hint: first you need to compare the moles of the substrates to know which substrate is the limited reagent. Then you calculate the percent yield by comparing the moles of the product with the theoretical yield (moles of the limited reagent).)
For the experiment I started with 3.79g of benzyltriphenyl phosphonium chloride and ended up with 1.624g....
For the experiment I started with 3.79g of benzyltriphenyl phosphonium chloride and ended up with 1.624g. What is my theoretical and percent yield? Molecular weight of benzyltriphenyl phosphonium chloride: 388.875 g/mol. Density: 1.18 g/cm^3 No chemical reaction given. Please tell me exactly what you need to figure out the answer. Experiment was "Preparation of (Z)- and (E)-stilbenes by a Wittig Reaction"
* Densities of the two reactants are: Sebacoyl chloride 1.121 g/mL and, 1,6-diaminohexane 0.83 g/mL yion Co1o o-diaminohexane Se ba coyl chloride If I start with 2 mL of the sebacoyl chloride and 1.3...
* Densities of the two reactants are: Sebacoyl chloride 1.121
g/mL and, 1,6-diaminohexane 0.83 g/mL
yion Co1o o-diaminohexane Se ba coyl chloride If I start with 2 mL of the sebacoyl chloride and 1.3 mL 1,6- diaminohexane and end up with 3.30g of my product nylon 6,10 what is my percent yield?
yion Co1o o-diaminohexane Se ba coyl chloride If I start with 2 mL of the sebacoyl chloride and 1.3 mL 1,6- diaminohexane and end up with 3.30g of...
Based on the Wittig Reaction exp. below, please answer a) and b). In b) you can...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
what would be the percent yield if the final weight of my product
is 0.1357g this is a green chemistry wittig reaction to produce
1,4-diphenyl-1,3-butadiene from benzyltriphenylphosphonium chloride
and trans- cinnamaledyde using sodium hydroxide as the base
You will be using a Green Chemistry Wittig reaction (NOT Wittig-Horner Emmons reaction) to produce 1,4-diphenyl-1,3-butadiene starting with benzyltriphenylphosphonium chloride and trans- cinnamaledyde using sodium hydroxide as the base. This reaction is considered a "green" reaction, because an aqueous solution will be used...
what is the percent yield of the lab procedure below?
my final weight of the product is 0.0519 g
sure of the proper disposal methodl, properly Check with your laboratory insructor if you are PROCEDURE Be sure to dry the 5-mL reaction vial in the oven for at least twenty minutes. Water is experiment. this Preparation of the Ylide 1. Place 0.480 g of benzyltriphenylphosphonium chloride in a dry, 5-mlL reaction vial containing a magnetic spin vane Add 2 mL...
63 cle OLI KPO photo d) K,PO, H2 Phyp-C 9-anthraldehyde M.W.. 20624 g/mol 9-(2-phenylethenyanthracene Benzyltriphenylphosphonium chloride M.W. = 388.88 g/mol Phyp=g m.p. 104-105°C M.W. 280.4 g/mol m.p. - 130-132°C Benzyltriphenylphosphonium ylide QUESTIUNI Which compound is not a possible limiting reagent? o toluene 9-anthraldehyde benzyltriphenylphosphonium chloride o K3PO4 QUESTION 2 What is the theoretical yield, in moles, of 9-(2-phenylethyl)anthracene if the limiting reagent for this reaction is a 50% miv solution of NaOH and 0.266 mL are used as a base?...
tthe weight of my product is 0.87 g and they gave me the
density! how can i calculte the percent yield?
- Page < 8 > of 14 | 0 Data and Observations Weight of product: Melting range of product: Attach any spectra to your laboratory report Calculations and Graphs Calculate the percent yield. Keep in mind that the reagents may not be 100% pure; refer to labels on the containers. The density of 50% aqueous sodium hydroxide is 1.5...
* Densities of the two reactants are: Sebacoyl chloride 1.121
g/mL and, 1,6-diaminohexane 0.83 g/mL
yion Co1o o-diaminohexane Se ba coyl chloride If I start with 2 mL of the sebacoyl chloride and 1.3 mL 1,6- diaminohexane and end up with 3.30g of my product nylon 6,10 what is my percent yield?
yion Co1o o-diaminohexane Se ba coyl chloride If I start with 2 mL of the sebacoyl chloride and 1.3 mL 1,6- diaminohexane and end up with 3.30g of...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
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