Question: I was wondering how you can tell what kind of Intermolecular forces are in a substance just by looking at the molecular formula?

So solid CO2 is held together by these London dispersion forces? As I understand it, a temporary polarity in one molecule induces polaritiy in neighbors and so forth. Now, in solid CO2, do all of the molecules have some similar dipole moment because this seems like it would lead to an overall dipole moment for the solid OR are the dipoles sort of continuously switching around in direction?

Colligative properties?
One of our lab questions was to use the van Hoff i factor in an equation to determine the new freezing point of water and NaCl.
Delta T=ink
Delta T = 2 (1.00 m/kg)(1.86C kg/mol)
Delta T = 3.72C
I thought it should have been less than the regular freezing point which is 0C. I didn't understand.

When talking about colligative properties, how do we know what molecules will separate?

Is the difference in an atom's size and ionization energy large enough between rows that it can account for the big lead in melting points?

How many minutes will be required to deposit 1.00 g of Cr metal from an aqueous solution of CrO4- using a current of 6.00 amperes?

Hey, I was wondering if you could give me some studying advice other than sleeping and eating, both of which I will get plenty of. I was thinking of doing the practice problems you assigned, and then working your example test and quizzes up to the point that we have covered and then reviewing our quizzes and notes. Do you think this will be sufficient? Any advice would be great, I fear your test!

Hey, I was wondering if you could do problem 4 on your 4 quiz in 1998, I get a big number, not sure if its right...