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Confused on both aspects of
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2. Jamal and Roberto performed a lab...
Pre Lab Question Please answer in complete sentences. Describe the characteristics of a good recrystallization solvent...
Pre Lab Question Please answer in complete
sentences.
Describe the characteristics of a good recrystallization solvent The solubility of a compound is 59 g per 100 mL in boiling methanol and 30 g per 100 mL in cold methanol, whereas its solubility in water is 7.2 g per 100 mL at 95 degree C and 0.22 g per 100 mL at 2 degree C. Which solvent would be better for recrystallization? Explain why. In what circumstances is it necessary to...
You will apply what you have learned earlier in the semester when performing the Acid-Base Extraction...
You will apply what you have learned earlier in the semester when performing the Acid-Base Extraction experiment to perform a different separation: that of an organic neutral compound and organic base. You will also need to purify and characterize these compounds. You will have one lab period to execute your plan for separating the assigned mixture given below. There will be a 1:1 (by mass) mixture placed in the lab: 1,4-dichlorobenzene/ethyl 4-aminobenzoate. You will take approximately 1 g of your...
I need help with the writing a paragraph of ``OBSERVATIONS`` part of the Lab report. It...
I need help with the writing a paragraph of ``OBSERVATIONS`` part of the Lab report. It is a substituition and Elimination exp. Please see exp.details below: We started with 2.1 g of solid. Final mass after crystalization was 1.1g. Melting point of the product was 36.4 C. Therefore 2-napthyethyl ether formed based on BP. The product formed colorless crystalline solid. Procdure: a solution of 1g of 2-naphtol was mixed with 4.0mL of 30% aqeous potassium hydroxide and 25 mL of...
noinizdle dn Draw a flow sheet to describe the separation procedure. (10 pts) doprleoudenagne aded 6....
noinizdle dn Draw a flow sheet to describe the separation procedure. (10 pts) doprleoudenagne aded 6. Are several small-scale extractions more efficient than one large-scale extraction? Why? (10 pts) 7. Why the upper layer should be poured out from the top of the separatory funnel but not be drained from the stopcock? (10 pts) Extraction: Separation of a Neutral and Basic Substances 1 Dissolve 2 g of a mixture of naphthalene and 4-chloroaniline in 20 mL of ethyl ether and...
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...
hi team! could i have some help filling in the blanks? Also, could you please double-check...
hi team! could i have some help filling in the blanks? Also,
could you please double-check my answers at the bottom of the
page?
info:
mass of filter paper + weigh boat = 3.051 g
mass of filter paper + weigh boat + dry aspirin = 4.971
g
mass of aspirin = 1.92 g
Data and Results: Preparation of Aspirin Section Mass of salicylic acid used Volume of acetic anhydride used Mass of acetic anhydride used (density = 1.08 g/mL.)...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you w...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
please identify the unknown and write a derivative Unknown compound 3 Clear liquid Physcial Properties Solubility...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
Hi! Can you please answer questions a and b for my organic lab report :) The...
Hi! Can you please answer questions a and b for my organic lab
report :) The pictures below the questions is my lab procedure.
Thank you
6. Analysis Questions: a) This lab utilized a new technique called reflux, and the use of a condenser tube while heating the reaction. What is the purpose of the condenser? Why not just heat the reaction in a closed vessel instead? b) A student misread the instructions and first refluxed the sodium methoxide in...
can you help answer this question according to the two other pictures? Procedure: Measure and dispense...
can you help answer this question according to the two other
pictures?
Procedure: Measure and dispense 0.6 ml of a 4.4 M solution of sodium methoxide in methanol and of ethanol into a 5 mL reaction vial. Add 2.5 mmol of acetaminophen (-0.378. Set up for reflux in the rume hood and bring reaction to reflux for 15 minutes (solvent is boiling and vapors are condensing on condenser). After 15 minutes directly through the top of the condenser tube, carefully...
Pre Lab Question Please answer in complete
sentences.
Describe the characteristics of a good recrystallization solvent The solubility of a compound is 59 g per 100 mL in boiling methanol and 30 g per 100 mL in cold methanol, whereas its solubility in water is 7.2 g per 100 mL at 95 degree C and 0.22 g per 100 mL at 2 degree C. Which solvent would be better for recrystallization? Explain why. In what circumstances is it necessary to...
noinizdle dn Draw a flow sheet to describe the separation procedure. (10 pts) doprleoudenagne aded 6. Are several small-scale extractions more efficient than one large-scale extraction? Why? (10 pts) 7. Why the upper layer should be poured out from the top of the separatory funnel but not be drained from the stopcock? (10 pts) Extraction: Separation of a Neutral and Basic Substances 1 Dissolve 2 g of a mixture of naphthalene and 4-chloroaniline in 20 mL of ethyl ether and...
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...
hi team! could i have some help filling in the blanks? Also,
could you please double-check my answers at the bottom of the
page?
info:
mass of filter paper + weigh boat = 3.051 g
mass of filter paper + weigh boat + dry aspirin = 4.971
g
mass of aspirin = 1.92 g
Data and Results: Preparation of Aspirin Section Mass of salicylic acid used Volume of acetic anhydride used Mass of acetic anhydride used (density = 1.08 g/mL.)...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
Hi! Can you please answer questions a and b for my organic lab
report :) The pictures below the questions is my lab procedure.
Thank you
6. Analysis Questions: a) This lab utilized a new technique called reflux, and the use of a condenser tube while heating the reaction. What is the purpose of the condenser? Why not just heat the reaction in a closed vessel instead? b) A student misread the instructions and first refluxed the sodium methoxide in...
can you help answer this question according to the two other
pictures?
Procedure: Measure and dispense 0.6 ml of a 4.4 M solution of sodium methoxide in methanol and of ethanol into a 5 mL reaction vial. Add 2.5 mmol of acetaminophen (-0.378. Set up for reflux in the rume hood and bring reaction to reflux for 15 minutes (solvent is boiling and vapors are condensing on condenser). After 15 minutes directly through the top of the condenser tube, carefully...
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