13. Given the boiling points of the solvents: methylene chloride (40 °C), diethyl ether (35 °C), ethyl acetate (77 °C) and hexane (69 °C), which solvent mixture is least likely to be separated using the process of "fractional distillation". 1). methylene chloride / ethyl acetate 2). methylene chloride / hexane 3). methylene chloride / diethyl ether 4). diethyl ether / ethyl acetate
13. Given the boiling points of the solvents: methylene chloride (40 °C), diethyl ether (35 °C), ethyl acetate (77 °C) and hexane (69 °C), which solvent mixture is least likely to be separated using the process of "fractional distillation". 1). methylene chloride / ethyl acetate 2). methylene chloride / hexane 3). methylene chloride / diethyl ether 4). diethyl ether / ethyl acetate
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:13. Given the boiling points of the solvents: methylene chloride (40 °C), diethyl ether (35 °C), ethyl
acetate (77 °C) and hexane (69 °C), which solvent mixture is least likely to be separated using the
process of "fractional distillation".
1). methylene chloride / ethyl acetate
2). methylene chloride / hexane
3). methylene chloride / diethyl ether
4). diethyl ether / ethyl acetate
14. A student is working on an experiment that produces an irritating chemical gas; the student
should:
1). do the reaction in a beaker of water
2). work near the sink
3). complete the experiment in a fume hood
4). call the instructor immediately
15. At the end of a laboratory session, what is the acceptable laboratory practice for a student to do:
1). vacate the lab at once
2). check to see how your classmate is progressing in the lab
3). dispose of any hazardous waste properly and clean-up the work area
4). go to get lunch because it was a long day
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