CHEMISTRY COMMUNITY

Shreya_Bharadwaj_1D

Thank you so much this really helps!

Shreya_Bharadwaj_1D

Catalysts are there from the beginning and are never used up. Intermediates are formed at some point in the reaction

Shreya_Bharadwaj_1D

You don't really need to know what the correct orientation but you will need to know how often or "frequently" they are in the correct orientation to collide and form the product

Shreya_Bharadwaj_1D

I feel that he will be strict on units but my TA said that they will probably be lenient on the sig figs

Shreya_Bharadwaj_1D

Add the exponents of the rate law to get the overall order of the reaction

Shreya_Bharadwaj_1D

What do you call an acid with attitude?
An a-mean-o Acid

Shreya_Bharadwaj_1D

I remember reading about it in the textbook but never really haering about it in class

Shreya_Bharadwaj_1D

I think they will tell us

Shreya_Bharadwaj_1D

k' represents the rate constant of the reaction and A represents the collision factor

Shreya_Bharadwaj_1D

Did you know that you can cool yourself to -273.15˚C and still be 0k?

Shreya_Bharadwaj_1D · Re: Final exam Sunday, March 17th from 11:30 am to 2:30 pm

Sunday, March 17th from 11:30 am to 2:30 pm

Shreya_Bharadwaj_1D · Re: Final exam Sunday, March 17th from 11:30 am to 2:30 pm

Sunday, March 17th from 11:30 am to 2:30 pm

Shreya_Bharadwaj_1D

You would use the Van't Hoff equation when you are given two temperatures and a K value

Shreya_Bharadwaj_1D

I think you would have to find both because you would need to know if they are equal, or if Q is greater than K or if K is greater than Q

Shreya_Bharadwaj_1D

When calculating change in entropy given constant Temperature, moles, and volume

Shreya_Bharadwaj_1D

Yes, Delta G is also a state function

Shreya_Bharadwaj_1D

It is so closed that matter cannot exit or enter the system and it is so insulated that no energy or heat can escape by way of changing pressures or temperatures

Shreya_Bharadwaj_1D

Cv is for a constant volume, Cp is for a constant pressure, and C is just the general term for specific heat

Shreya_Bharadwaj_1D

Cv is for a constant volume, Cp is for a constant pressure, and C is just the general term for specific heat

Shreya_Bharadwaj_1D

Usually at standard conditions, the temperature is simply 25 degrees Celcius or 298 Kelvin but the temperature is usually given for Gibb's Free Energy

Shreya_Bharadwaj_1D

Will Test #2 cover the thermodynamics that we learned prior to the midterm or just what we learn between the midterm and the test?

Shreya_Bharadwaj_1D · Re: Final exam The final exam is Sunday March 17th at 11:30 to 2:30 pm

The final exam is Sunday March 17th at 11:30 to 2:30 pm

Shreya_Bharadwaj_1D

Did you hear Magnesium and Oxygen are a couple now?? OMg!!

Shreya_Bharadwaj_1D

Thank you! I was wondering the same thing and this explanation really helped!

Shreya_Bharadwaj_1D

What is the difference between ΔHf^o and ΔHf

Shreya_Bharadwaj_1D

I don't trust atoms because they make up everything

Shreya_Bharadwaj_1D

Technically, yes, but I would stick to what we are currently learning in class because some of the later homework problems require you to read further in the book

Shreya_Bharadwaj_1D

They both are found and used using the same methods but Kc is used for concentration and Kp is used for pressures of gasses

Shreya_Bharadwaj_1D

The lines with a zero-slope represent an increase in temperature for a substance at a single state and the lines with positive slopes represent phase changes

Shreya_Bharadwaj_1D

Wanna hear a Potassium joke?
K :)

Shreya_Bharadwaj_1D

I was wondering the same thing, too. I was wondering if someone could post a solution key with the problem worked out so that I can see how to do the problem and where I went wrong

Shreya_Bharadwaj_1D

Ice boxes can be used to find any equilibrium value whether it be concentration or partial pressure

Shreya_Bharadwaj_1D

Kw refers to the concentration of water molecules and since water is a neutral substance on the pH scale, the concentrations of [H3O+] and [OH-] are the same because when you calculate the pH given these numbers, you will get 7, which is right in the middle of the pH scale

Shreya_Bharadwaj_1D

Most acids that we use in class will probably be from 0 to 14 on the pH scale and we are unlikely to run into any "superacids" that have negative pHs

Shreya_Bharadwaj_1D

You would use Kc when dealing with concentrations of substances and Kp when dealing with the partial pressures of gases

Shreya_Bharadwaj_1D

Yes your homework is due during your discussion section!

Shreya_Bharadwaj_1D

It just means that when a reaction sits to the left, the reactants are favored and when a reaction sits to the right, the products are favored

Shreya_Bharadwaj_1D

You would use the brackets to denote concentrations or molarity and use parentheses to indicate partial pressure

CHEMISTRY COMMUNITY

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