macscigirl

Great job Hermann, you're going to have to teach me to do this someday

Alrighty, I was doing my homework and I ran across this problem that I can't figure out, just cyber slap me if this is a really dumb question. It takes 585 J of energy to raise the temperature of 125.6 g of mercury from 20.0*C to 55.1*C. Calculate the specific heat capacity and the molar heat capacity of mercury. :confused:

I thought R had to be .08206

Hi I'm macscigirl AKA Heather! I go to Mcpherson College for Pre-Med! WOO

Yeah I have no clue how I came out with the correct answer but I did. It would have helped A LOT if I would have had temp!!! I could have found the moles of the gasses and then used The Ideal Gas Law. But I just used what I had and it worked!

No it didn't give me temp!!! Thats why I was SO frustrated! I figured it out though, I took P1xV1/Pfinal Then of course I added the two together to get the total pressure. That was sheer luck that I happened to punch that into my calc!!!

so what formula would I use? I used ideal gas (I think) and that didn't come up with the answer I was looking for.

thanks a lot! Yeah number 1 is how I memorized the phases, PMAT- Prophase, Metaphase, Anaphase, and Telaphase. Maybe if I think of it like a movie it will help more. Thanks!

Ok so I've been working on this problem for what seems like forever now and I can't get it. Can someone PLEASE help me?! It has a picture of a flask that has a bulb on each end, these two bulbs are connected. Question: Consider the flasks in the following diagram. What are the final partial pressures of H2 and N2 after the stopcock between the two flasks is opened? (Assume the final volume in 3.00L) What is the total pressure in torr? One side of the bulb is H2 and it has 2.0L H2 and 475 torr. The other side is N2 and has 1.0L N2 and .200 atm. Please someone help me!!!!! This is due tomorrow and I have no clue how to work this out, I've tried everything I know!!!

Thanks. I'm not sure if that would work for me though.... but it won't hurt to try. Any one have any other suggestions?

I need to be able to memorize the phases in Meiosis and Mitosis, I have the names of the phases down I'm just not sure how to memorize what goes on in each step. Any advise?