Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
expand_more
expand_more
format_list_bulleted
Question
Chapter 3, Problem 11Q
Interpretation Introduction
Interpretation:
The importance of the tightly packed sample in the melting point capillary should be determined.
Concept introduction:
Temperature at which an element changes from the solid state to the liquid state is known as melting point or sometimes liquefaction point. At the melting point, both solid and liquid phase coexist in equilibrium. It depends on the pressure and is normally defined at the standard pressure
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
When taking a melting point, only a very small sample size is needed to go into the
capillary. Too large of a sample size will result in:
O 1) Wider melting point range
2) Lower melting point
3) None of the above.
O 4) Narrower melting point range
What are the answers for these questions?
1.Why is it necessary that the oil bath/water bath is stirred while heating?2.Why are there bubbles escaping from the open end of the capillary tube during boiling?3.What is the importance of collecting more than one drop of the liquid sample from the burette?4.Based on the boiling point and surface tension values obtained, which of the two liquids has stronger IMFA?
How does the solvent move up the stationary phase.
A. Polarity
b. Capillary action
c. All of the above
d. None of the above
Chapter 3 Solutions
Macroscale and Microscale Organic Experiments
Knowledge Booster
Similar questions
- What are the answers for these questions? 2.Why are there bubbles escaping from the open end of the capillary tube during boiling? 3.What is the importance of collecting more than one drop of the liquid sample from the burette? 4.Based on the boiling point and surface tension values obtained, which of the two liquids has stronger IMFA?arrow_forwardWhy do banana and apple show discoloration when it left out in the open air for some time?arrow_forwardDescribe how a cholesteric liquid crystal phase differs from a nematic phase?arrow_forward
- 105 100 95 75 0 1 2 3 4 5 67 8 9 10 11 12 13 14 15 16 17 18 19 20 Volume distillate collected (mL) 1. Indicate the volume of the distillate at which you should stop collecting to make sure that the distillate is only composed of one component. 2. Indicate the boiling point range involved in the collection of this amount of distillate. Temp in Still Head ("C)arrow_forwardWhy is it hard to obtain the melting point of caffeine?arrow_forwardA sample of naphthalene is contamined with a small amount of anthracene. The melting point would be about the sample as the pure sample higher and the range broader than the pure sample lower and the range more narrow than the pure sample lower and the range broader than the pure sample higher and the range more narrow than the pure samplearrow_forward
- How does the temperature during distillation compare to literature values for the product?arrow_forwardDemonstrate understanding on the benzene-water mixture type a lotarrow_forwardIn TLC, samples are spotted using capillary tubes, then, capillary tubes are washed using water and? A. Acetone B. DCM C. Ethyl acetate D. Methanolarrow_forward
- Complete solutions for Letter B only thanks,please when you pic your solutions I suggest that It’s not blur thankarrow_forwardRe: recrystallization Before packing into a capillary tube, a solid substance has to be powdered. Why is this done on a watch glass rather than on a piece of filter paper?arrow_forwardFirst part Most and least volatile And the last partarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK A SMALL SCALE APPROACH TO ORGANIC L
Chemistry
ISBN:9781305446021
Author:Lampman
Publisher:CENGAGE LEARNING - CONSIGNMENT