CHEMISTRY COMMUNITY

kane_jajieh_3F

Lavelle said that there would be at least one homework question on the exam yes

kane_jajieh_3F

If you're trying to demonstrate a ring flip I think either one would work, I'd probably go with the chair conformation though.

kane_jajieh_3F

the structure of benzene looks like the structure of a cyclohexene but with 3 double bonds. Why is it called benzene rather than cyclohex-1,3,5-ene?
also, what is the structure of a phenyl group?

kane_jajieh_3F

And if you started numbering on the side chains you would have to devise a whole new way of naming compounds to keep all the names standard

kane_jajieh_3F

if you started numbering on the side chain you would et a different name for the molecule. Starting the numbering with the longest chain just provides scientists a basic and standard way to name these molecules

kane_jajieh_3F

this question is about the example used in section 15.7
so if we had the two elementary reactions
1. O3->O2+O
2. O3+O->O2+O2
O is a reaction intermediate
would O2 also be an intermediate?

kane_jajieh_3F

Bob: Hey Chris have you heard about this new band called endothermic reaction?
Chris: Ya I've been a fan of them since before they were cool

kane_jajieh_3F

A bear from the U.S. named Joe invites his cousin from Antarctica, Jeff, to go swimming. They both jump in the pool, but Jeff starts freaking because he thinks he's dissolving. Joe tells Jeff, "calm down bears are insoluble you're fine" and Jeff replies, "easy for you to say, you're n...

kane_jajieh_3F

In class today on page 69 it says the rate of the reaction is k[NO2]^2. why is this so? I thought the reaction rate would be k[NO2] because the coefficient of NO2 is 1

kane_jajieh_3F

I get the whole process for this question and how they got the answer for k. but i don't understand the conclusion. The steps they showed concluded with them acheiving a value for k=0.04min^-1, but in the EVALUATE section it says k is equal to 6.7x10^-4. Why is this?

kane_jajieh_3F

in example 14.9 why is the nr value equal to 2? shouldn't it be 1 as indicated by the redox reaction equation?

kane_jajieh_3F

in example 14.9 why is the nr value 2 and not one as indicated by the redox equation?

kane_jajieh_3F

This can be answered by the tool box 14.1 in the book. step 1 identify the species being oxidized and the species being reduced from the changes in their oxidation numbers. step 2 Write the two skeletal (unbalanced) equations for the oxidation and reduction half-reactions. step 3 Balance all element...

kane_jajieh_3F

An example of a reversible reaction would be when you have a cylinder with a piston. And this container is filled with gas. now when this gas pushes on the piston it does work. The work this gas does on the piston is defined as reversible when the resistance the gas faces is always equal to the forc...

kane_jajieh_3F

In example 9.6 you're supposed to add up the enthalpy required to bring the acetone form temp. 296k to 329.4k, the enthalpy required to vaporize the acetone, and the enthalpy lost when you bring the vapor's temperature back down to 296k. I don't understand the last step. why do we need to add this e...

kane_jajieh_3F

The textbook problem 8.17 states "Each of the pictures below shows a molecular view of a system undergoing a change at constant temperature. In each case, indicate whether heat is absorbed or given off by the system, whether expansion work is done on or by the system, and predict the signs of q...

kane_jajieh_3F

In the book it says that enthalpy is a state function. What does this mean? What is a state function?

CHEMISTRY COMMUNITY

Search found 17 matches

Re: 2017 final

Re: Ring Flip: Final

benzene and phenyl

Re: Numbering

Re: Numbering

reaction intermediates

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

reaction rate

example 15.4

example 14.9

example 14.9

Re: Balancing Redox Reactions in Basic Solution

Re: Reversible vs Irreversible

calculating entropy of vaporization

energy changes

Enthalpy