OCHEM 310 (lab) Boise state final || with 100% Accurate Solutions.OCHEM 310 (lab) Boise state final || with 100% Accurate Solutions.
2 views 0 purchase
Course
OCHEM 310 (
Institution
OCHEM 310 (
What does MgSO4 do when added to solution? correct answers It removes water that is dissolved in the solution
Why is it more difficult to remove DMSO from a reaction mixture correct answers It has a very high boiling point (90% sure this is correct, but may be wrong)
During recrystallization,...
OCHEM 310 (lab) Boise state final || with 100% Accurate
Solutions.
What does MgSO4 do when added to solution? correct answers It removes water that is
dissolved in the solution
Why is it more difficult to remove DMSO from a reaction mixture correct answers It has a very
high boiling point (90% sure this is correct, but may be wrong)
During recrystallization, what will happen if too much hot solvent is used to dissolve the crude
compound? correct answers few or zero crystals will be isolated
Why is it important to cover the reaction mixture during stirring? correct answers If the reaction
mixture splashes out of the flask, it could get on someone
A properly prepared melting point sample should be ... correct answers -finely ground up
-compacted well into a capillary tube
-be about 2-3 mm in height (another answer given was 1.5-2 mm)
What should you do if the baseline of your TLC plate dips below the level of the solvent as you
put the plate into the developing chamber? correct answers Start over with a new TLC plate,
dump out this solvent, and put less in the beaker next time.
When should you mark the solvent front on your TLC plate? correct answers After you remove
the TLC plate from the developing chamber, but before the solvent evaporates.
What will you do with your TLC plate(s) at the end of the experiment? correct answers Throw
them in the garbage can
Epoxides like stilbene oxide are correct answers generally carcinogens
What are the samples that come out the bottom of a chromatography column called? correct
answers fractions
If this product mixture is purified by column chromatography, what order will the chemicals E,
K, X, and B elute from the column? (E being towards the top of the TLC, then K, then X, then B
being closest to the baseline of the TLC plate) correct answers -E will elutes first
-K elutes second
-X elutes third
-B elutes last
What will happen when the silica gel is combined with hexane? correct answers the silica gel
will NOT dissolve in the hexane, and it will SINK
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller FullyFocus. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
