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budullewraagh

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Everything posted by budullewraagh

  1. i still believe silicon is far too metallic to work. the bonds it makes are far too polar. also, think of the molecules you can make with carbon. you can't make many similar compounds with silicon.
  2. you know...you could just have a trapdoor leading to a pirahna bath solution
  3. can anybody here tell me the electronegativities/electropositivities of polyatomic ions? is there an activity series?
  4. that isn't what happens with electrolysis. the reaction is: 2NaCl -> 2Na+Cl2 if you do it in water, you get NaOH, but you'd have to be incredibly stupid to do it in water. also, referring to an above post where i mentioned the reactions of alkali metals with water, i'd like to post an image i found: http://www.ulg.ac.be/lem/images/cesium.jpg you can tell the difference between the cesium and potassium, no?
  5. where did you get THAT? NaCl+H2O ->Na+ + Cl- + H2O
  6. just wondering what i would end up with if i created an atmosphere with oh, say 3/4ths H2 and 1/4th air and increased pressure. how much pressure would be required to form NH3? how much pressure would be required to form H2O (i could imagine much less than the amount for NH3). what else would be produced? we can assume that not all of the H2 will form H2O because there is more H2 than the amount required to make the H2+O2 -> 2H2O reaction go to completion.
  7. he's wrong; people do electrolysis all the time and are successful. you have to be fast, however; molten sodium balls will fly out in random directions. you have to pick them up and throw them into an oil (preferably motor oil) as quickly as possible. chances are you will have an oxide layer on the outside of the pellets but you will have the metal inside. to fix this just scrape off the oxide while the pellet is submerged in the oil. also, sodium doesn't react all that dangerously with water. depending on how much you add the sodium will fizz around the surface and hydrogen will be released. potassium has a similar effect but it is more vigorous and it burns in a purple flame. to see a video of the reaction of K with H2O, go here: http://www.webelements.com/webelements/elements/media/moov/K_H2O.mov if you dont have quicktime just change the .mov to .mpg; they have both on their server. of course, if you add the sodium to a concentrated acid, you will have a very dangerous and vigorous reaction.
  8. if it yielded sodium gas, the sodium would instantly oxidize. personally i'm not so sure about the sodium boiling. if you want to test, check to see if there's fine black powder everywhere after you finish. that should be the sodium/potassium oxide. i've never seen argon sold commercially, but then again i can't get anything around here. seriously, no chlorates, chlorites, perchlorates nitrates, phosphates, potassium compounds, halides (save HCl NaCl and NaF from tap water), sulfates (save MgSO4 and H2SO4 from car batteries)... the list continues. as for your tungsten electrodes, i am not so sure. what do you mean by "react"?
  9. the other day i was looking through my "lange's handbook of chemistry" and i stumbled upon a table that had many compounds and their solubilities in H2O at various temperatures. out of curiousity, i looked for the most soluble compounds. i found antimony trichloride and found that at 40 celcius, 1368g of it can dissolve in 100mL H2O. it said that at 72 celcius it is completely miscible. does anybody here find it to be possible to continuously add SbCl3 to H2O and NEVER precipitate it? i'll throw around some figures: 121.760+3*35.45=228.119=1 mole SbCl3. 1368/228.119=5.996870055M=saturated solution of SbCl3 in 100mL H2O. 100/18=5.5555 (repeating). there are more moles of SbCl3 than H2O at 40 celcius. therefore there are more molecules of SbCl3 than H2O at 40 celcius. the number of H2O molecules is only 92.64091942% of the number of SbCl3 molecules there are. the Sb+3 migrate towards the O end of H2O while 3 Cl- atoms migrate towards the H in H2O. that makes sense, except the Sb+3 and Cl- are so close to one another when in this saturated aqueous solution that i don't see why they don't precipitate. also i'd like to add that the above calculations are only for the 40 celcius reading; again, at 72 celcius SbCl3 is "completely miscible". can anybody help me out?
  10. just the prospect of Na(g) scares me. but come to think of it, it would be Na2O(g) and would cool quickly so i suppose it's not so bad
  11. of course i know about the mongol empire. i've read books about khubilai and have read quite a bit into jengiz/chingghis/genghis/timuchin/any of his other 28 other names' conquests. i think we both were interpreting different things. i was responding to the quote: thomas more and john locke especially would cry at hearing that, then write even more books with opposing opinions. by the way, many people spell engels' name "freiderich". timuchin had 32 different spellings of his name. also, i quote myself: by saying that i mean the people mentioned above all did not appreciate the concept of natural law stating that humans are capitalistic economically.
  12. by outer realms i mean like this: N=nucleus E= electrons being shared in a bond the sigma bond: N-----E-----N the pi bond: N--------N -----E---- you see? edit: that didnt work the first time, let me try the diagrams again. the "----" marks mean nothing, but using them is the only way i can create distances.
  13. actually a polar covalent bond is formed between each H and O atom. "hydrogen bonding" isn't actually bonding, but it rather is the term for the attraction between a cation's nucleus and an anion's electrons. imagine a H2O molecule; 2 polar covalent bonds, a bent sort of structure (because of the lone pair of electrons on one side of the O atom). the back end of the O is sticking out and "unprotected" by the H atoms. this is a nice negative area, so the H atoms of other H2O molecules tend to pull towards the O of that other H2O. when you dissolve molecules in water, the anion(s) and cation(s) break their bond(s) and migrate similarly to the respective atoms in H2O.
  14. the electron configuration of sodium is 1S^2, 2S^2, 2P^6,3S^1 this means that the first S sublevel has 2 electrons (is full), the second S is also full with 2 electrons, the first P (in the second energy level) is full with 6 electrons and the 3rd S has 1 electron out of a possible 2. S orbitals are like a circle around the nucleus. one electron spins one way, the other spins the opposite way. P orbitals look like figure 8s. there are 3 P "rings" per energy level. these are located on the x, y and z axes that all hold a maximum of 2 electrons. the electron configuration of fluorine is 1S^2, 2S^2, 2P^5 when the Na and the F bond, an SP hybrid orbital is created. the bond created is considered to be a sigma bond. it is formed between the two molecules. pi bonds can be located towards the outer realms of the molecular orbitals and are much weaker because they cannot bend due to their positioning.
  15. karl marx, freiderich engels, thomas more, a bunch of romans and perhaps plato all frown upon you.
  16. ay, sadly the most stable Fr isotope lasts for less than 25 minutes.
  17. there are some things that one cannot explain however. an example is how so many pet animals sense when their families are coming home by getting anxious and jumping to look out windows even when it isn't a normal time for their families to be coming home. another example is much more inexplicable. a professor at uc berkeley is often away on business. his wife always knows when he will call because everytime he calls, the cat scratches the phone. the cat has never done this when it has heard the phone ringing and another person was at the other end. this works even when the professor is in japan and europe. if you read resurgence magazine, a recent issue has an interesting article regarding such cases. it states that the mind is not confined to the human body but can freely roam the planet.
  18. im quite sure that 1atm would be sufficient considering these are only solids. the Li you will have will be foil so that's fine enough. i'd finely powder your K salt tho. i dont know the temp however
  19. oh, of course. i'm the same way. the first time i opened an AA battery i was afraid it would blow up on me so i researched for about an hour. then i ripped into it with my hacksaw, but i did it slowly and it took about half an hour. nothing happened at all. i was wearing gloves, goggles and face protection. i found carbon black and MnO2. needless to say, i was annoyed.
  20. that's highly amusing. congrats; you have made my day worthwhile
  21. heh, i think in both ways. because of this i have decided not to do various things that would have led to certain death.
  22. i may try if i ever get a blowtorch or bunsen burner
  23. remember that peroxymonosulfuric acid (pirhana bath) is not so stable even on its own and mixture with Na replacing the H, that will probably make it explode
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