Recent content by leaf345

Also, we did another cell that is giving me trouble too. One 1/2 cell was: Ag electrode 0.1 M AgNO3 solution The other was: Pt electrode 0.1 M Fe2+ and 0.1 M Fe3+ I think the overall redox rx'n was Ag+ + Fe2+ --> Fe3+ + Ag so I calculated the expected cell voltage. But I get a value that is...

Hey guys, I just did a lab on electrochem but we haven't started learning this in our lectures so I'm not too confident on it. One of the lab question asks us to calculate the expected cell voltage. From reading the textbook, this is what I did: The reaction was 2Ag+ + Cu -> 2Ag + Cu2+ I added...

bump b/c this question owns me

I spent quite a bit of time trying to figure this out, but I just can't seem to get this question: When a 10.0g mixture of Ca(ClO3)2 abd Ca(ClO)2 is heated to 973 Kelvins in a 10.0 L vessel, both compounds decompose, forming O2 and CaCl2. The final pressure inside the vessel is 1.00 atm. What...

For the ideal gas law and van der waals eq'n, R can be a) 8.3145J/(k*mol) or b) 0.082058(L*atm)/(k*mol) . But if I use the first value of R, and try to solve for P my value always comes out as about 1000 smaller than it should be in Pa(ie/ it should be 2000 but it gives me 2). If I use the 2nd...

For the purpose of drawing dot structures and determining VSEPR shape, how do I figure out the number of valence electrons for inner transitional metals? Do I only count the electrons in the highest p and s orbitals, or do I also count the electrons in d,f,etc. orbitals? Clarification on this...

Hey all, I was doing a physics question in preparation for an exam, but I can't seem to figure it out! The question: "Your favourite physics teacher who is late for class attempts to swing from the roof of a 24 metre high building to the bottom of an idential building using a 24 metre rope as...

I tried what you recommended in your second part and it worked :) Thanks.

Hi, this is my first time posting here but I have a question that looked really simple at first, but the answer I get is wrong from the answer given to us by our teacher. The question is this: Consider the diagram below http://img485.imageshack.us/img485/9282/physics3bn.jpg a) What is the...