20 minutes into eluting his column, a student has not yet observed the orange ferrocene move near the bottom of his burette. The student notices that only a few drops of solvent come out of the burette tip at a time. a. Propose an explanation for the student's slow elution time. b. C. After finding a solution to his previous problem, the student is eluting and begins to see orange crystals form at the end of his burette tip. In 20 words or less, identify the cause of the observation. How should the student resolve the issue indicated above in part (b)?

20 minutes into eluting his column, a student has not yet observed the orange ferrocene move near the bottom of his burette. The student notices that only a few drops of solvent come out of the burette tip at a time. a. Propose an explanation for the student's slow elution time. b. C. After finding a solution to his previous problem, the student is eluting and begins to see orange crystals form at the end of his burette tip. In 20 words or less, identify the cause of the observation. How should the student resolve the issue indicated above in part (b)?

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter20: Rates Of Chemical Reactions, I. The Iodination Of Acetone

Section: Chapter Questions

Problem 1ASA: In a reaction involving the iodination of acetone, the following volumes were used to make up the...

See similar textbooks

Similar questions

Comment on the precision of your data from the prelab. Specifically: a) What assumptions were you making about the total volume of your standard solutions? b) What was the limiting piece of equipment for your volume measurements?c) How many significant figures should your concentration data have?
DATA Note: Use the videos as references except when data is provided here. Table 1. Selection of Recrystallizing Solvent. Solvents Dissolution at room temperature? (+ or −) Dissolution at elevated temperature? (+ or −) Distilled water - - Acetone + n/a 95% ethanol - + Toluene + n/a Solid sample: Naphthalene Table 2. Mass Measurements. Mass, g Sample solid 0.5021 Empty watch glass 35.7602 Watch glass with recrystallized sample 36.2485 Table 3. Melting Point Determination. Temperature, oC Appearance of Sample in Capillary Tube … Solid 78.4 Solid 79.3 Solid with signs of liquid 79.9 Solid, liquid 80.6 Liquid, solid 81.3 Liquid with signs of solid … Liquid Theoretical Melting Point, oC: 80.2°C (176.4°F) QUESTIONS Which solvent should be used as the recrystallizing solvent? Check if your chosen solvent satisfies all characteristics of a good…
During Buchner filtrati on a portion of the filtrate isused for swirling the resi due into the funnel and the pump is reconnected. Why do you use the filtrate here instead of water?
When heating a solution to boiling on a hot plate, start by ____________ a. preheating the glassware in the oven b. starting and stabilizing the stir function c. manually stirring the solution I chose c, but it was wrong. Please help
Calculate the average % Lysis for each column.
Solve both parts otherwise i will downvote and i need handwritten solution
Answer sub-parts iv, v and vi
( plz do all very easy , plz do not give incomplete solution plz , give complete i will upvote
Distillation is best done at what speed? a) Very fast to avoid loss of material b) The rate of distillation isn't all that important c) Very slow to get the best separation d) At a moderate speed, but no faster than a degree of equilibrium can be maintained
Give detailed Solution..show work..don't give Handwritten answer..don't use Ai
In a fractional distillation experiment it is important to wrap insulting tape and Al foil around the length of the fractionating column. Why do you think this is necessary?
How was the precipitate obtained after filtration? By scraping from the filter paper and transferring to a watch glass. By redissolving in hydrochloric acid. By drying the precipitate on the filter paper using a desiccator. By charring the filter paper and igniting the product in a crucible.