Question

In: Chemistry

Which of the following solvent pairs could be used in a solvent pair recrystallization (in general,...

Which of the following solvent pairs could be used in a solvent pair recrystallization (in general, not for this specific reaction)? For those selected, briefly explain why. For those not selected, briefly explain why not:

a) Ethyl acetate and hexane

b) Water and diethyl ether

c) Methanol and methylene chloride

Solutions

Expert Solution


Related Solutions

Under what circumstances would we want to use a solvent pair for recrystallization instead of a...
Under what circumstances would we want to use a solvent pair for recrystallization instead of a single solvent? What can cause 'oiling out'?
Does the amount of solvent used for a recrystallization have an influence on the yield of...
Does the amount of solvent used for a recrystallization have an influence on the yield of product of a recrystallization? Please explain.
Assuming a reaction occurs between the following pairs of elements, which pair is most likely to...
Assuming a reaction occurs between the following pairs of elements, which pair is most likely to form an ionic compound? Hint: What two types of elements make ionic compounds? A. copper and oygen B. chlorine and oxygen C. Cesium and Calcium D. fluorine and Nitrogen
Which of the following pairs of hypotheses are used to test if the mean of the...
Which of the following pairs of hypotheses are used to test if the mean of the first population is smaller than the mean of the second population, using independent random sampling? Multiple Choice A. H0: µD ≤0, HA: µD >0 B. H0: µD ≥0, HA: µD <0 C. H0: µ1 – µ2≥ 0, HA: µ1 – µ2< 0 D. H0: µ1 – µ2≤ 0, HA: µ1 – µ2> 0 Please let me know A, B, C, or D. And a...
Explain why you chose your recrystallization solvent. What properties did this solvent have that made it...
Explain why you chose your recrystallization solvent. What properties did this solvent have that made it the best for recrystallization?
1. Describe the process of selecting a suitable recrystallization solvent. (4 pts)
1. Describe the process of selecting a suitable recrystallization solvent. (4 pts)
Which of the following pairs of variables (attributes listed in parentheses) could be analyzed using a...
Which of the following pairs of variables (attributes listed in parentheses) could be analyzed using a chi-square analysis? [hint: consider the level of measurement for each variable] Options: -Race (African American, Hispanic/Latino, White, Other) & Number of Children (0,1, 2, 3, 4, 5, 6+) -Gender (Male, Female) & Depression Score (Measured on a multi-item Likert Scale, Beck Depression Inventory) -Police Officer Rank (Cadet, Officer, Sergeant, Lieutenant, Chief of Police) & Favorite Color (Blue, Green, Red, Yellow) -Marital Status (Single, Married)...
1) In this experiment, we purified cyclohexene by distillation. Could we have used recrystallization instead to...
1) In this experiment, we purified cyclohexene by distillation. Could we have used recrystallization instead to purify? Explain. 2) At the end we stopped the distillation with some material left in the vial. Why is it considered unsafe to distill until dryness? please help!
What are the two main requirements for a recrystallization solvent? Briefly describe the outcome and conclusions...
What are the two main requirements for a recrystallization solvent? Briefly describe the outcome and conclusions of your solubility tests for your Week 5 unknown.
6. when choosing a solvent for recrystallization of an organic solid, what rule of thumb is...
6. when choosing a solvent for recrystallization of an organic solid, what rule of thumb is generally used? What characrsitics should an ideal recrystallizing solvent have? 7. During recrystallization, why is it important to let the solution cool slowly to room temperature before cooling in ice? what would happen if the hot solution was immediatly cooled in ice?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT