## Search found 6 matches

Thu Feb 19, 2015 12:08 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Arrhenius Equation for two temperatures (14.59)
Replies: 3
Views: 766

### Re: Arrhenius Equation for two temperatures (14.59)

It is also one of the equations on the back of the lamented periodic table that was given with the course reader.
Thu Feb 19, 2015 12:06 pm
Forum: First Order Reactions
Topic: HW #14.35b
Replies: 3
Views: 688

### Re: HW #14.35b

If you were also confused on the ln 10, I was originally confused on why it was ln 10 and not ln(.1) and then I noticed that by dividing the negative it flipped the fraction.
Thu Feb 19, 2015 12:00 pm
Forum: General Rate Laws
Topic: Writing rate law: the 2 questions
Replies: 5
Views: 922

### Re: Writing rate law: the 2 questions

When you say overall rate law of the reaction, do you mean once the steps of an equation have been added together?
Thu Feb 19, 2015 11:53 am
Forum: General Rate Laws
Topic: When to use pre-equilibrium approach
Replies: 2
Views: 532

### Re: When to use pre-equilibrium approach

In this case wouldn't you just use the slow step in order to find the rate law because the fast steps happen so much more quickly that they do not have an effect. So I believe that would be rate=k[NO][NO3].
Thu Feb 19, 2015 11:49 am
Forum: General Rate Laws
Topic: To use mmol or not
Replies: 2
Views: 534

### Re: To use mmol or not

I noticed this also, what I found was that in problem 14.19, it was converted because so many of the molarities were being multiplied together and 2 of them were being squared so to give a cleaner answer it was converted. You will get the same answer if you do not convert to mol and then convert at ...
Tue Nov 18, 2014 5:19 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Cyanide Negative Charge
Replies: 2
Views: 954

### Re: Cyanide Negative Charge

It is related to the oxidation state of the atoms, in the example NH3, NH3 is a neutral molecule because N has a charge of -3 and H has a charge of +1. Also when drawing the lewis structure for a molecule the overall charge of the molecule should add up to the overall formal charge.

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