| I got C3H7O2 as the empirical formula. YES. That is what I got. Wait, no...I got like 7, 6, and 2. Uh...I think I got it wrong. Shyte. I was so sure about that though! I still am. Gah!
Yeah, I hope the N2 this is write...brown gas would be NO2. I also got more flammable with O2. yeah, and if you think about it SiO2 is glass - that does not react with water to make acid. Although I didn't get the network covalent description - arg.
Methanoic is stronger. That's the one that they give you. The calculuated Ka value was larger...Al should be Al(OH)6^3-. I put Al(H2O)6^3+. LOL.
and for the ionization energy one, it's not because of shielding. it's because you are adding protons but not adding electron shell (so even if you have more electrons, they have negligible mass anyway) so that electrons are same distance from the nucleus but the nucleus is more positive - hence more electrostatic attraction - and bigger pull, equals need more energy to pull off because is closer to nucleus.
Man, this sucks. I was so sure about my empirical formula. For mole ratios, I got like 3.5, 3. and 1. I'm pretty sure my 1 was C. So that would've been like C2H6O7 or something. arg
arg, i'm getting off this thread. it's making me feel less confident in that test, which I thought I totally got a 5 on. Gah! |