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Examen
Chm2211L Progress Quiz 1 | Questions And Answers | 2026 Update | With Complete Solution
NuevoChm2211L Progress Quiz 1 | Questions And Answers | 2026 Update | With Complete Solution
EvaTee
Examen
CHM 2211L TOP Study Guide Exam Questions and CORRECT Answers
PopularWhy did we use decolorizing carbon?To remove impurities from oxidation Which functional group was oxidized in the acetophenitidin?the amine Why do we need to take impurities out of reactions?because impurities will lower the yield why do we add acetic anhydryde?to make it more neutral again so that it can react What is the proper way to make an icebath?1/4 water and 3/4 ice to increase the surface area We added sodium methoxide (a strong base)...what would happen if we skipped this st...
STANFORDGRADESS
Examen
CHM 2211L Questions with CORRECT Answers
NuevoCHM 2211L Questions with CORRECT Answers
KeithAndrews
Examen
CHM 2211L Test Questions with Correct Answers Already Passed Latest Update 2025
CHM 2211L Test Questions with Correct Answers Already Passed Latest Update 2025 What is a technique used to purify organic solids? - Answers recrystallization When an organic chemist conducts a recrystallization, he chooses a solvent that will what? - Answers completely dissolve both the desired compound and any other organic impurities when that solvent is at BP In addition to solubility at boiling temperature requirement of the solvent in recrystallization, the desired compound must also be...
TutorJosh
Examen
CHM 2211L Key PASSED Exam Questions and CORRECT Answers
Mixtures have (higher/lower) melting points than pure substanceslower What is the purpose of sodium acetate solution in the amide synthesis of acetophenetidin?In the acylation reaction, the amine acts as a nucleophile, but we have the ammonium salt present in our solution. This ammonium salt can't act as a nucleophile (it doesn't have non-bonded electrons to use), so we need to add something to deprotonate the ammonium salt. This is the purpose of the sodium acetate - it is just a wea...
WIZGrades
Examen
CHM 2211L UPDATED Exam Questions and CORRECT Answers
What is a technique used to purify organic solids?recrystallization When an organic chemist conducts a recrystallization, he chooses a solvent that will what?completely dissolve both the desired compound and any other organic impurities when that solvent is at BP In addition to solubility at boiling temperature requirement of the solvent in recrystallization, the desired compound must also be what?insoluble in the chosen solvent at cold temperatures, and the organic impurities must rem...
WIZGrades
Examen
CHM 2211L Certification Exam Questions and CORRECT Answers
Which of the following is a monomer? a. benzene dimethanol b. cellulose c. glucose d. polyvinyl alcoholbenzene dimethanol cannot be a polymer answer: glucose The final polymers you synthesized followed which pattern? a. AB b. ABC c. ABA d. ABB e. AAABA
WIZGrades
Examen
CHM 2211L TOP Study Guide Exam Questions and CORRECT Answers
Why did we use decolorizing carbon?To remove impurities from oxidation Which functional group was oxidized in the acetophenitidin?the amine Why do we need to take impurities out of reactions?because impurities will lower the yield why do we add acetic anhydryde?to make it more neutral again so that it can react What is the proper way to make an icebath?1/4 water and 3/4 ice to increase the surface area We added sodium methoxide (a strong base)...what would happen if we skipped this st...
WIZGrades
Examen
CHM 2211L UPDATED Exam Questions and CORRECT Answers
What is a technique used to purify organic solids?recrystallization When an organic chemist conducts a recrystallization, he chooses a solvent that will what?completely dissolve both the desired compound and any other organic impurities when that solvent is at BP In addition to solubility at boiling temperature requirement of the solvent in recrystallization, the desired compound must also be what?insoluble in the chosen solvent at cold temperatures, and the organic impurities must rem...
STANFORDGRADESS
Examen
CHM 2211L Certification Exam Questions and CORRECT Answers
Which of the following is a monomer? a. benzene dimethanol b. cellulose c. glucose d. polyvinyl alcoholbenzene dimethanol cannot be a polymer answer: glucose The final polymers you synthesized followed which pattern? a. AB b. ABC c. ABA d. ABB e. AAABA
STANFORDGRADESS
Examen
CHM 2211L Key PASSED Exam Questions and CORRECT Answers
Mixtures have (higher/lower) melting points than pure substanceslower What is the purpose of sodium acetate solution in the amide synthesis of acetophenetidin?In the acylation reaction, the amine acts as a nucleophile, but we have the ammonium salt present in our solution. This ammonium salt can't act as a nucleophile (it doesn't have non-bonded electrons to use), so we need to add something to deprotonate the ammonium salt. This is the purpose of the sodium acetate - it is just a wea...
STANFORDGRADESS