Why is the benzaldehyde preferentially attacked by the 1-indanone over another 1-indanone? Using a mortar and...
Why is the benzaldehyde preferentially attacked by the 1-indanone over another 1-indanone?
- Using a mortar and pestle, grind approximately 5 g of sodium hydroxide into fine particles.
- Add 0.50 g of 3,4-dimethoxybenzaldehyde and 0.40 g of 1-indanone to a test tube.
- Using a vortex mixer, gently mix the two solids together, forming an oil.
- Add 0.10 g of finely ground sodium hydroxide from Step 1 to the oil.
- Allow the reaction to sit for 15 minutes.
- Add 4 mL of 10% aqueous hydrochloric acid.
- Isolate the product by vacuum filtration.
- Recrystallize the product using 90% aqueous ethanol. The recrystallization should require between 30–40 mL of solvent.
- Obtain the melting point of the product.
Homework Answers
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Why is the benzaldehyde preferentially attacked by the
1-indanone over another 1-indanone?
Using a mortar and...
LAB Using a mortar and pestle, grind approximately 5 g of sodium hydroxide into fine particles....
LAB Using a mortar and pestle, grind approximately 5 g of sodium hydroxide into fine particles. Add 0.50 g of 3,4-dimethoxybenzaldehyde and 0.40 g of 1-indanone to a test tube. Using a vortex mixer, gently mix the two solids together, forming an oil. Add 0.10 g of finely ground sodium hydroxide from Step 1 to the oil. Allow the reaction to sit for 15 minutes. Add 4 mL of 10% aqueous hydrochloric acid. Isolate the product by vacuum filtration. Recrystallize...
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...
what is the theoretical yield of anisalacetophenone and dibenzalacetone formed? thank you. The Aldol Condensation Precautions:...
what is the theoretical yield of anisalacetophenone and
dibenzalacetone formed? thank you.
The Aldol Condensation Precautions: Acetone, ethanol and acetophenone are flammable; work in a fume hood. Sodium hydroxide is a strong base and can cause severe skin burns and eye damage. Safety goggles are required. Gloves are recommended. Purpose To carry out two Aldol condensation reactions in which no heat is needed to obtain the condensation product. The two reactions differ in the number of enolizable protons at the...
I need help calculating theoretical yield for my Diels-Alder lab experiment. This reaction was between 1,3-butadiene...
I need help calculating theoretical yield for my
Diels-Alder lab experiment. This reaction was between 1,3-butadiene
and maleic anhydride, forming cis 1,2,3,6-tetrahydrophthalic
anhydride. In this experiment 1.0g of maleic anhydride was combined
with 1.8g 3-sulfolene and 2 mL dry xylene and refluxed for 30 mins.
6 mL of xylene was added to dissolve solids and then decanted, then
warm pet. ether was added to form crystalline product after
cooling. some of this info may be irrelevant in what is needed...
What is the reaction product(s) of oleic acid & sodium methoxide? Show the structure(s). Part A:...
What is the reaction product(s) of oleic acid & sodium methoxide? Show the structure(s). Part A: Acid Catalyzed Fischer Esterification of Free Fatty Acids Add 20 mL of canola oil and a magnetic stir bar to a 125-mL Erlenmeyer flask, and place the flask on a magnetic stirring plate. Add 2–3 mL of methanol and up to three drops of concentrated sulfuric acid Perform this step with caution, as this is a strong acid! Immerse a thermometer into the reaction...
Synthesis of crude product. 1. Combine reagents (following either step A or B, depending on the...
Synthesis of crude product.
1. Combine reagents (following either step A or B, depending on the
benzaldehyde assigned to
you). It is best not to use a brand-new conical vial right out
of the package, as the surface is not rough enough to help induce
precipitation.
A. In a 5-mL conical vial, combine 0.15 g of 3-nitrobenzaldehyde
(151.121 g/mol), 0.12 mL
of acetophenone (120.151 g/mol; d = 1.03 g/mL), and 0.80 mL of
95% ethanol.
OR
B. Pipette 0.13 mL...
Make sure the reaction table described above is completed in your notebook.
Prelab questions:1. Make sure the reaction table described above is completed in your notebook.2. Two benzaldehyde molecules combine with one acetone molecule in this aldol reaction. If someone uses 5.0 mL of benzaldehyde and 2.5 mL of acetone to try to improve the yield of product, is this the correct ratio of molecules so that there is no excess? Why or why not?The Aldol Reaction: Synthesis of DibenzalacetonePurpose: Introduce the student to the hands-on chemistry of carbonyl condensations.Warning: Dispose of...
i need to calculate the theortetical yield by finding the limiting reactant of the experiment by...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
Construct a flow chart describing the seperation of the mixture and the isolation of each compound...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solu...
Organic Chemistry Help!
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solution you will notice a lot of foaming. Explain. What is left behind in the aqueous layer after filtration of the saponification product? The starting material and the product of the saponification reaction have similar melting points. How do you know you actually isolated a new product rather than just recovered the starting material? Give at least two different methods to...
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...
what is the theoretical yield of anisalacetophenone and
dibenzalacetone formed? thank you.
The Aldol Condensation Precautions: Acetone, ethanol and acetophenone are flammable; work in a fume hood. Sodium hydroxide is a strong base and can cause severe skin burns and eye damage. Safety goggles are required. Gloves are recommended. Purpose To carry out two Aldol condensation reactions in which no heat is needed to obtain the condensation product. The two reactions differ in the number of enolizable protons at the...
I need help calculating theoretical yield for my
Diels-Alder lab experiment. This reaction was between 1,3-butadiene
and maleic anhydride, forming cis 1,2,3,6-tetrahydrophthalic
anhydride. In this experiment 1.0g of maleic anhydride was combined
with 1.8g 3-sulfolene and 2 mL dry xylene and refluxed for 30 mins.
6 mL of xylene was added to dissolve solids and then decanted, then
warm pet. ether was added to form crystalline product after
cooling. some of this info may be irrelevant in what is needed...
Synthesis of crude product.
1. Combine reagents (following either step A or B, depending on the
benzaldehyde assigned to
you). It is best not to use a brand-new conical vial right out
of the package, as the surface is not rough enough to help induce
precipitation.
A. In a 5-mL conical vial, combine 0.15 g of 3-nitrobenzaldehyde
(151.121 g/mol), 0.12 mL
of acetophenone (120.151 g/mol; d = 1.03 g/mL), and 0.80 mL of
95% ethanol.
OR
B. Pipette 0.13 mL...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
Organic Chemistry Help!
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solution you will notice a lot of foaming. Explain. What is left behind in the aqueous layer after filtration of the saponification product? The starting material and the product of the saponification reaction have similar melting points. How do you know you actually isolated a new product rather than just recovered the starting material? Give at least two different methods to...
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