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Everything posted by Redrang604

  1. I am trying to determine the feasibility of applying electroluminescent paint to my computer case as a mod. I have not been able to find as much as I would like about the specifics of the compounds needed nor whether or not they lend themselves to being applied easily. As I currently understand it electroluminescence requires, usually, at a minimum 4 layers. A dark colored conductive layer, a insulating layer, a phosphor layer, and a transparent conductive layer. I have not been very successful in finding places to acquire these compounds. Can anyone give me any advice in my endeavor?
  2. What are the balanced redox equations that take place between Ammonium Molybdate [(NH4)6Mo7O24:4H20], Stannous Chloride [snCl2:2H20], and Phosphate that form Molybdenum Blue [Mo5O14]?
  3. The problem with all these arguments about electrons being particles or waves is the fact that they are neither. There is nothing in classical physics that can descibe them. The ideas of wave or particle are simplifications.
  4. Yeah, I've already done the coin thing before, earlier this year we did it with a dime. Also last year we made them "gold"(just zinc plated and then heated, brass) I have however found a lab that i think I am going to use, you can check it out Here If anyone knows the equation for the reaction that takes place it would be helpful.
  5. I am an 11th grade student who just finished the AP Chem test. My teacher has everyone pick out a lab to do for a final grade. I was wondering if anyone knew of(or where to look for) a challenging lab that was interesting(maybe covers a topic that isnt usually covered in an AP Chem class) that is doable in about an hour and a half, and can be done in an average High School Chem room.
  6. Sound would affect the equilibrium becasue if you add kinetic energy the reaction would equalize towards the endothermic side by la chatelier's principle I was thinking that maybe I could create a setup that allows me to measure the pH of a solution with and without sound input. The question I am really posing is: 1. Is this in any way practical 2. If so how should the speaker be setup next to the solution or somehow in it? 3. How sensitive would the equipment have to be to detect this change. Would a thermometer sensitive to a tenth of a degree C be able to pick up the change? 4. Does anyone have a better setup to determine this?
  7. Does sound have a measureable affect on the rate of reaction or equilibrium. If so what would be a good way to go about measuring its effect
  8. since at all times some water is dissociating as: [math] \ce{H2O <=> H3O+ + OH-} [/math] Could a substance [math]XA[/math] where [math]XA[/math] is a soluble gas or solid so that: [math] \ce{XA <=> X+ + A-} [/math] when combined with water. And that it then reacts as: [Math] \ce{X+ + OH- <=> XOH_{(g)} or_{(s)}} [/math] and where: [math] \ce{H3O+ + A- <=> H3OA} [/math] either does not take place or has an extremely small equillibrium constant so that the water's Ph goes down by using up the hydroxide without any additional acid? If so what substance would [math]XA[/math] be and if not, why not?
  9. If I know k for a first order equation how can I find the point in time where a given percentage of product has been used up. I only know k and not beginning or ending concentrations.
  10. I would like an explanation on how to go about solving these two. I am having some trouble. 24. In 1975, the U.S. EPA set a standard of 50 ppb of lead in drinking water. In 1991, a new standard was set that safe water contains less than 15 ppb. a.Write each of these rates as fractions using positive powers of 10 b.Write each rate without fractions, using negative powers of 10
  11. The battery in question uses tritium, the particles are not terribly energetic. They are weak enough that a simple metal case (similar to that of current batteries) can make them suitable for such uses as pacemaker batteries.
  12. the colors change somewhat as you zoom in. What colors did you think were off. And because of the great response I am going to do this again.
  13. 1 is duct tape stick side 60x 2 is styrofoam 200x 3 is a honey BBQ potato chip 200x 4 is my knuckle 60x 5 is a plastic water bottle cap 200x EDIT: 6 is paper
  14. All wrong, I'm gonna wait for a few more guesses or until someone gets it to say what it is, don't forget there are 6 there guess them all
  15. Ok, I pulled my old qx3 computer microscope out of the closet and hooked it up, let's see who can guess the pictures
  16. oh, im sorry, ill try to remember that in the future
  17. Ok, how about this one 10 fish I caught without an eye, 9 without a tail, 6 had no head, and half of 8 I weighed upon the scale, now who can tell me as I ask it, how many fish are in my basket? Give number and reasoning
  18. ok, heres a stumper 10 fish I caught without an eye, 9 without a tail, 6 had no head, and half of 8 I weighed upon the scale, not who can tell me as I ask it how many fish are in my basket? Give number, and include your reasoning
  19. I was just wondering others thoughts on this not saying the merck index is wrong, all im trying to figure out is the products of the reaction. Also EVAN id rather you not just tell everyone my name, i use a psudonym(sp?) for a reason
  20. I've been doing experiments in his room with his approval for 4 years. Beginning with yellow phosporus and moving to explosives. Also, Nave, take a look at your sig
  21. First off i don't want this to turn into a flame war on whether ametuers should be using dangerous chemicals. The thing about what we have is that is DOES NOT EXPLODE as easily as you say, it only explodes when exposed to organic compounds, not when light is shined on it, nor the heat from the light.
  22. how would i do that, as far as ive seen anything that would combine with sulfates, combine with chlorides
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