Homework Answers
Answer:
Crystallized structure needs more temperature to melt because of their perfect order crystal structure as compare to crude samples.
Theoretical yield = initially taken = 2 gm
Experimental yield (Crystallized benzoic acid) = ( recrystallized benzoic acid + filter paper + tray weight ) - (filter paper + tray weight).
So, Experimental yield = (2.83-2.75) gm = 0.08 gm.
Percentage yield = (Actual yield / theoretical yield ) = ( 0.08/2)*100% = 4%.
Add Answer to:
the effect of ph on food perservatives lab
2.0grams of benzoic acid was used and was...
separation of a three-component mixture by extraction, lab report help, the compounds are benzoic acid ,9-fluorene...
separation of a three-component mixture by extraction, lab report help, the compounds are benzoic acid ,9-fluorene , and ethyl-4- aminobenzoate. I need help to write Discussion about this lab report and I dont know what should I write.I got 25% recovary for benzoic acid ,32% for ethyl-4- aminobenzoate and 50 % recovary for 9-fluorene.( by the way I lost some product of benzoic acid). please help me full paper as you could for discussion and what is the source of...
separation of a three-component mixture by extraction, lab report help, the compounds are benzoic acid ,9-fluorene , and ethyl-4- aminobenzoate. I need help to write Discussion about this lab report a...
separation of a three-component mixture by extraction, lab report help, the compounds are benzoic acid ,9-fluorene , and ethyl-4- aminobenzoate. I need help to write Discussion about this lab report and I dont know what should I write.I got 25% recovary for benzoic acid ,32% for ethyl-4- aminobenzoate and 50 % recovary for 9-fluorene.( by the way I lost some product of benzoic acid). please help me full paper as you could for discussion and what is the source of...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
Calculate the theoretical yield of the aspirin. Show all work: 2.50x 180 aSpirin DATA TABLE for A...
Please use picture #1 to answer the chemistry questions in picture
#2. Thank you
Calculate the theoretical yield of the aspirin. Show all work: 2.50x 180 aSpirin DATA TABLE for ASPIRIN: Mass of salicylic acid (g): Mass of filter paper (g): Calculated theoretical yield of &.So aspirin product: 3.26 Salycylic acid color with Fer FeCl, color tests Your aspirin color with FeCl: Dark pure - Part 2: Mass of acetylsalicylic acid (aspirin) after drying and filter paper Mass aspirin) Calculate...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
Determine the yield of the products. The first should be the yield of benzoic acid. The...
Determine the yield of the products.
The first should be the yield of benzoic acid.
The ammon plus is should be the yield of benzamide. Please
write out and show all work, theoretical yield etc. Thanks!
Purification-Week add Decant the dry dichloromethane solution into a 25-mlL round-bottom flask, and a few boiling chips. Don't worry if a little magnesium sulfate slips into the distilla- tion flask, it will act as additional boiling chips. Set up an apparatus for microscale simple...
What are the desirable characteristics of a solvent to be used in the recrystallisation of a...
What are the desirable characteristics of a solvent to be used
in the recrystallisation of a solid product? (Hint: what is the
underlying purpose of doing recrystallisation, aside from making
the product look attractive?)
EXPERIMENT5 PREPARATION OF BENZOIC ACID Oxidation of a Primary Alcohol In this experiment, a primary alcohol (benzyl alcohol) is oxidised to a carboxylic acid (benzoic acid) by a strong oxidising agent (potassium permanganate) Because the synthesis reaction is carried out in basic conditions, the carboxylic acid...
for this experiment i got a yield of 0.93g how do you and what is the...
for this experiment i got a yield of 0.93g
how do you and what is the theoretical and percentage
yield?
The Diels-Alder Reaction of Anthracene with Maleic Ankudride The Disco Alder reaction is a member of a class of reactions called cycladditions. The reacties wolves three x bonds, two from the diene and one from the dicnophile in a concerted reaction to Come six-memberedning Smce the reaction involves four electroes in the dienendo slectrons from the dicasphile, it is sometimes...
Need help on providing reactions that describe the acid-base extraction and neutralization processes used in this exper...
Need help on providing reactions that describe the acid-base
extraction and neutralization processes used in this experiment.
Provide a statement of solubility of each starting material and
product.
The experiment to be performed this week involves liquid-liquid extraction using a separatory funnel. Read chapter 15 in Zubrick to familiarize yourself with the use of the glassware for extraction and washing. Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substances that have varying solubility...
Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substancesthat...
Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substancesthat have varying solubility properties. Typically an aqueous solution can be extracted with anorganic solvent to isolate a compound or vice-versa. The specialized piece of glassware that isemployed for these types of separations is called a separatory funnel.In this experiment a mixture of benzoic acid and naphthalene will be purified using liquid-liquidextraction, more specifically an acid-base extraction. Since both compounds are soluble inethyl acetate (an...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
Please use picture #1 to answer the chemistry questions in picture
#2. Thank you
Calculate the theoretical yield of the aspirin. Show all work: 2.50x 180 aSpirin DATA TABLE for ASPIRIN: Mass of salicylic acid (g): Mass of filter paper (g): Calculated theoretical yield of &.So aspirin product: 3.26 Salycylic acid color with Fer FeCl, color tests Your aspirin color with FeCl: Dark pure - Part 2: Mass of acetylsalicylic acid (aspirin) after drying and filter paper Mass aspirin) Calculate...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
Determine the yield of the products.
The first should be the yield of benzoic acid.
The ammon plus is should be the yield of benzamide. Please
write out and show all work, theoretical yield etc. Thanks!
Purification-Week add Decant the dry dichloromethane solution into a 25-mlL round-bottom flask, and a few boiling chips. Don't worry if a little magnesium sulfate slips into the distilla- tion flask, it will act as additional boiling chips. Set up an apparatus for microscale simple...
What are the desirable characteristics of a solvent to be used
in the recrystallisation of a solid product? (Hint: what is the
underlying purpose of doing recrystallisation, aside from making
the product look attractive?)
EXPERIMENT5 PREPARATION OF BENZOIC ACID Oxidation of a Primary Alcohol In this experiment, a primary alcohol (benzyl alcohol) is oxidised to a carboxylic acid (benzoic acid) by a strong oxidising agent (potassium permanganate) Because the synthesis reaction is carried out in basic conditions, the carboxylic acid...
for this experiment i got a yield of 0.93g
how do you and what is the theoretical and percentage
yield?
The Diels-Alder Reaction of Anthracene with Maleic Ankudride The Disco Alder reaction is a member of a class of reactions called cycladditions. The reacties wolves three x bonds, two from the diene and one from the dicnophile in a concerted reaction to Come six-memberedning Smce the reaction involves four electroes in the dienendo slectrons from the dicasphile, it is sometimes...
Need help on providing reactions that describe the acid-base
extraction and neutralization processes used in this experiment.
Provide a statement of solubility of each starting material and
product.
The experiment to be performed this week involves liquid-liquid extraction using a separatory funnel. Read chapter 15 in Zubrick to familiarize yourself with the use of the glassware for extraction and washing. Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substances that have varying solubility...
Most questions answered within 3 hours.
-
Why is the answer b), for this question? I came up with C) for
my incorrect...
asked 3 minutes ago -
Suppose that you know that in the population of full-time
employees in the United States, the...
asked 25 minutes ago -
This experiment was designed originally to sample various meat and carcass quality
aspects of Ontario pigs...
asked 25 minutes ago -
Dopamine Hydrochloride: draw the structure And Show the
functional groups in different colors and label the...
asked 17 minutes ago -
A rope supports a 10 kg dumbbell hanging from it. What is the
tension in the...
asked 17 minutes ago -
) Raw materials are studied for contamination. Suppose that
the number of particles of contamination per...
asked 39 minutes ago -
After running a regression analysis we calculated an F test and
the significance level was 0.15....
asked 35 minutes ago -
----Can someone please help me solve this one using JAVA
----I thank you in advance
Create...
asked 40 minutes ago -
1. What force primarily attracts the potassium ion to
the nitrate ion?
a. London forces...
asked 41 minutes ago -
What are the negative effects of abruptly stopping the use of
all fossil fuels? Give at...
asked 48 minutes ago -
Given that many conflict are the result of different parties having
different interests, is it possible...
asked 53 minutes ago -
A 750 g block can slide uniformly along the horizontal track
when a string attached to...
asked 56 minutes ago