Homework Answers
During extraction, the Acetylsalicylic acid will react with sodium bicarbonate to form sodium salt acetylsalicylic acid, which is water soluble. The solubility of Acetylsalicylic acid in water is less. Thus we are extracting it using sodium bicarbonate. If sufficient sodium bicarbonate is not there, the yield will be less.
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Explain why not adding enough sodium bicarbonate during the purification process results in isolating less aspirin.
Compute the pH of a solution formed by adding 7.3 g of baking soda (sodium bicarbonate)...
Compute the pH of a solution formed by adding 7.3 g of baking soda (sodium bicarbonate) to enough water to make a 470.0 mL solution. The acid dissociation constants for carbonic acid are pK1=6.35, pK2=10.33
2. Why anhydrous sodium sulfate is added to the t-butyl chloride in the purification process? Could...
2. Why anhydrous sodium sulfate is added to the t-butyl chloride in the purification process? Could solid sodium hydroxide be used instead of anhydrous sodium sulfate? 3. The reaction from t-butyl alcohol and HCl gives t-butyl chloride. Is it SN1 or SN2 reaction and why?
state and explain why blood agar is usually stabbed during streaking when isolating beta streptococci
state and explain why blood agar is usually stabbed during streaking when isolating beta streptococci
please explain 1. Why is the conjugate base of aspirin more soluble in water than...
please explain
1. Why is the conjugate base of aspirin more soluble in water than ether? 2. Why does the extraction of aspirin by NaHCO3 generate a gas? 3. Assume 1 g of the 3 g is aspirin. Show by calculation that 7 mL of 6 M HCI is enough to completely neutralize the conjugate base of aspirin to the neutral compound.
4. Genotype Results Were you successful in isolating genomic DNA and obtaining a PCR product? (Describe size and estimated amount.) If answering No to either, explain why! a. /) enimenon....
4. Genotype Results Were you successful in isolating genomic DNA and obtaining a PCR product? (Describe size and estimated amount.) If answering No to either, explain why! a. /) enimenon. TC alle )/.tet e t。 /1</i J What is your genotype as revealed by the Fnu4HI digest of your PCR product and if it matches your phenotype? b. c. Why might an individual's phenotype not match their genotype? DOPULATION GENETI ORY 7 AROSE GEL ELECTROPHORESis On the template below, indicate...
Why is it essential to mix the paracetamol with sodium hydroxide before adding of 1-bromobutane? Use...
Why is it essential to mix the paracetamol with sodium hydroxide before adding of 1-bromobutane? Use the equation to describe the reaction process.
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane?...
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane? What happens during this time? 2. Why does phenol react with sodium hydroxide? Why does ethanol not react to the extent that phenol does with sodium hydroxide? 3. What is the better nucleophile, sodium phenoxide or phenol? Why? 4. Why do you need to rinse your product with ice water instead of room temperature water?
Why is the partition coefficient different for benzoic acid and sodium benzoate? Explain chemical reasons why...
Why is the partition coefficient different for benzoic acid and sodium benzoate? Explain chemical reasons why the two values differ. Especially note the type of intermolecular forces that exist in the solute and the two solvents. Partition Coefficient of Benzoic Acid Benzoic acid in water layer and organic layer (dichloromethane) as organic layer. 3.1 Partition Coefficient of Sodium benzoate Benzoic acid in aqueous layer (water and sodium bicarbonate) and dichloromethane as organic layer. 0.12
Why did you wash the ether solution with sodium bicarbonate? Write chemical equations for the rea...
Why did you wash the ether solution with sodium bicarbonate? Write chemical equations for the reactions that took place. b. At which purification steps was the unreacted methanol removed in the reaction? Some of it may have been removed in more than one place. c. Three-Step Synthesis of Methyl Anisate (Step 3) 0 CHOH. Н.so, cat.) Wear gloves. Methanol is poisonous. Ether is an anesthetic, so don't breathe it. Sulfuric acid is a strong corrosive acid. Wash any you spill...
Explain why such different results are observed. Match the words in the left column to the...
Explain why such different results are observed. Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help large but it has nothing to react with rapidly By adding the ketone to LDA, the enolate is generated By adding LDA to the ketone, the enolate is generated in a remaining ketone, allowing the aldol reaction to proceed amount in a sea of small slowly
2. Why anhydrous sodium sulfate is added to the t-butyl chloride in the purification process? Could solid sodium hydroxide be used instead of anhydrous sodium sulfate? 3. The reaction from t-butyl alcohol and HCl gives t-butyl chloride. Is it SN1 or SN2 reaction and why?
please explain
1. Why is the conjugate base of aspirin more soluble in water than ether? 2. Why does the extraction of aspirin by NaHCO3 generate a gas? 3. Assume 1 g of the 3 g is aspirin. Show by calculation that 7 mL of 6 M HCI is enough to completely neutralize the conjugate base of aspirin to the neutral compound.
4. Genotype Results Were you successful in isolating genomic DNA and obtaining a PCR product? (Describe size and estimated amount.) If answering No to either, explain why! a. /) enimenon. TC alle )/.tet e t。 /1</i J What is your genotype as revealed by the Fnu4HI digest of your PCR product and if it matches your phenotype? b. c. Why might an individual's phenotype not match their genotype? DOPULATION GENETI ORY 7 AROSE GEL ELECTROPHORESis On the template below, indicate...
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane? What happens during this time? 2. Why does phenol react with sodium hydroxide? Why does ethanol not react to the extent that phenol does with sodium hydroxide? 3. What is the better nucleophile, sodium phenoxide or phenol? Why? 4. Why do you need to rinse your product with ice water instead of room temperature water?
Why did you wash the ether solution with sodium bicarbonate? Write chemical equations for the reactions that took place. b. At which purification steps was the unreacted methanol removed in the reaction? Some of it may have been removed in more than one place. c. Three-Step Synthesis of Methyl Anisate (Step 3) 0 CHOH. Н.so, cat.) Wear gloves. Methanol is poisonous. Ether is an anesthetic, so don't breathe it. Sulfuric acid is a strong corrosive acid. Wash any you spill...
Explain why such different results are observed. Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help large but it has nothing to react with rapidly By adding the ketone to LDA, the enolate is generated By adding LDA to the ketone, the enolate is generated in a remaining ketone, allowing the aldol reaction to proceed amount in a sea of small slowly
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