ChemEd DL Resource Groups

17 Results

Reaction Mechanisms (Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Induction by Iron(II) of the Oxidation of Iodide by Dichromate (Movie/Animation, Audio/Visual (2))
Acidic aqueous solutions containing dichromate and iodide ions are mixed with no reaction. The addition of a solution of iron(II) ion induces the rapid formation of brown triiodide ion.

Blue Bottle, Red and Blue Bottle (Movie/Animation, Audio/Visual (2))
Color changes are caused by reactions of oxygen in the air with chemicals in a solution. The colors fade over time, but can be regenerated by shaking the flask containing the solution.

Kinetics : ElementRxnRateLaws (13 Variations) (Assessment Material (1))
Assume that the equation below represents an elementary reaction. Predict the rate expression (rate law) for this reaction. CO(g) + Cl₂(g) COCl₂(g)

Kinetics : RxnMechanisms (14 Variations)

(Assessment Material (1))

Experiments show that the reaction of nitrogen dioxide and carbon monoxide
NO₂ + CO

NO + CO₂

has the following rate expression at high temperatures:

Rate=k[NO₂][CO]

Is the following mechanism compatible with the experimental information?
(1) NO₂ + CO O-N-O-C-O (slow)
(2) O-N-O-C-O NO + CO₂ (fast)
Choose the best answer.

Kinetics : IntermediateInMech (15 Variations) (Assessment Material (1))
Suppose that for the reaction of nitrogen dioxide and carbon monoxide NO₂ + CO NO + CO₂ the following mechanism has been proposed at high temperatures: (1) NO₂ + CO O-N-O-C-O (slow) (2) O-N-O-C-O NO + CO₂ (fast) Check the box for each species that is an intermediate in this mechanism.

Kinetics : ElementaryRxnOrNot (9 Variations) (Assessment Material (1))
Which of the following reactions could be elementary and unimolecular reactions?

Kinetics : InterpretEnergyProfile (16 Variations) (Assessment Material (1))
Use the energy profile below to decide if the following statements are true or false.

Alcohols and Ethers (22 Variations) ()
A collection of 22 assessment questions about Alcohols and Ethers

Aromatic (26 Variations) ()
A collection of 26 assessment questions about Aromatic

Aldol Reactions (30 Variations) ()
A collection of 30 assessment questions about Aldol Reactions

Substitution and Elimination (6 Variations) ()
A collection of 6 assessment questions about Substitution and Elimination

Radicals (9 Variations) ()
A collection of 9 assessment questions about Radicals

Anhydrides (2 Variations) ()
A collection of 2 assessment questions about Anhydrides

Acetals (9 Variations) ()
A collection of 9 assessment questions about Acetals

ChemPaths 104 F Feb 25 ()
Today in Chem 104: * Lecture: Problem-Solving Session * No assigned reading for today. * Homework #5 due by 11:55 pm Today! * Biomolecules Tutorial Enzymes (including Enzymes Quiz) is due Wed. Mar. 2, at 11:55 pm.

ChemPaths 104 W Feb 23 ()
Today in Chem 104: * Lecture: Mechanisms of Reactions * Reading: Kotz, Ch. 15, Sec. 5-6 Moore, Ch. 13, Sec. 6-76 * Homework #5 due by 11:55 pm F Feb 25 * Excel Assignment due in first discussion section this week * Quiz 4 in second discussion section this week