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Applied Chemistry

Practical chemistry.

  1. Started by Oban Kobi,

    How much heat is released from the reaction of aluminum chloride and water? Yes, I've tried google. No, I don't have a calcinator. Now I could get really clever with some thermometers and styrofoam, but that wouldn't be very accurate, and would be a bit difficult to keep the reaction in an enclosed space with the large quantities of gas released, and I was rather hoping someone here might be able to help. Thanks

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  2. Started by Andoz,

    Hi, I've recently started to accumulate different chemicals (trying to make a small lab at home) and I was wondering if anyone could tell me some interesting reactions I could do with the stuff I got. Here is what I have so far.. NaOH KMnO4 KNO3 KOH NaHSO4 C S Fe2O3 Al Powder Glycerol and SrCO3 I'm also getting some MnO2 and Cr2O3. I've made some thermite and a little black powder but thats all so far. I was wondering If I could make some different chemicals from what I have that would be useful.

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  3. Started by daniel limbert,

    Can you dissolve it & analyse thr purity of red phosphorous?

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  4. Guest prvbspike
    Started by Guest prvbspike,

    Calculate the pH of 0.100 M sodium propanoate (NaC3H5O2)???

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  5. I want to manufacture NaOh from scratch with electrolysis. I need to go to sleep been reading a really good book about chemistry. So if you have idea please post. I will join the discussion when I get a good night sleep.

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  6. Hi all. A voltaic cell with a carbon rod and aluminium rod electrodes generates some potential in a container with seawater. If that voltage is applied to other two platinum electrodes in the same electrolyte in the same container, will they generate some gases ?

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  7. Started by Externet,

    Come on, enough skilled, experienced and smart people in this forum ! Come up with a fluid in a tub -or two layers of nonmiscible fluids, or whatever your knowledge yields- that when sun-bathed generate electricity at its electrodes. It's about time... Miguel

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  8. Started by TATER,

    Hello, i am having a little trouble finding magnesium. if anyone knows how to get magnesium(powder or solid form) without having to buy any ,please let me know. Thanks!!

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  9. Started by Jonathon,

    Hi Boffins and Boffettes, I need to create an ink that after application will remain invisible to the naked eye for a period of 4 days, (or thereabouts). It must reveal itself without a secondary agent (just time and normal environmental conditions), and needs to be made from non-hazardous, readily available (though not necessarily household) chemicals. Really hoping someone can help me. It's a bit of an esoteric request, but it's actually quite important. Thank you.

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  10. Started by jimminsc,

    Does anyone know what would be the best chemical to use to remover cooked peanut oil from kitchen exahust vents. I have herd that a caustic mix of sodium hydroxide and potassium hydroxide will work but im no chemist. Can anyone help? Thanks!

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  11. Started by amit,

    actually i didnt know where to put this question hence i decided to put it in field i m working in. what compound we can use instead of acrylic resin in scanning electron microscope?

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  12. Started by chemhater,

    hello im in chemistry and we are almost through for the year but our final projects are due monday and i need the full chemical reaction that happens when a smoke bomb is ignighted and if someone could please explain it to me in lamens terms that would be much appreciated

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  13. Started by PauloChem,

    Ok so I tried a simple experiment I mixed 20% HCl solution with Zinc and guess what I got throat irritation from breathing in HCl fumes. 2HCl + Zn ---> ZnCl2 + H2 Cl- But there must be some Cl- maybe with water. Now this Cl- sucker are baddd. So If you want to experiment with HCl wear a wet t-shirt or something around your mouth. Oh and also check all the E-s in wikipedia.

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  14. Hi. Can the surface oxide layer be permanently removed if a piece of the metal is scraped while submerged in oil -and kept in it- ?

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  15. I've looked it over a couple of times but I don't now what react's to eachother. Is there Somebody that can tell me how this work's?? http://www.metacafe.com/watch/1256640/how_to_make_a_crofty_bomb

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  16. Started by rockymtnblue,

    Hey folks, I am trying to devise a method to filter aromas from the air. My general idea is to pump the air, via a fan and air duct, through a water-containing compartment. Now, my problem comes down to what to do from here. The molecule I am attempting to filter is a 3-ring aromatic hydrocarbon. I have been doing a lot of research, however, being only a college freshman, much of the information eludes me. I have scoured the internet for exactly what properties of the aromatic rings cause the molecule to have a smell, however, I was only able to find information about why we perceive smell (ie olfaction). With that being said, I took a shot in the dark and hypoth…

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  17. Started by sarwatiqbal,

    hi can anybody help me in understanding the working procedure of GC,especially how do the valves work?

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  18. Started by bikenik,

    How is nitrous oxide manufactured?

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  19. Started by NMajik,

    How does temperature affect absorption of caffeine taken orally? I'm not sure if it's really a matter of "absorption" but I couldn't think of a better term. (Sorry if I put this in the wrong subforum)

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  20. Started by frosch45,

    I'm wondering the difference between isopropyl (spell?) alcohol and ethyl alcohol. Obvioulsy they have different chemical formulas and different applications.... But I was wondering if using isopropyl alcohol in an ethyl alcohol lamp would be bad? I don't want to ruin the equipment or anything, i'm guessing that I wouldn't, but does one burn hotter than the other? thanks

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  21. Started by dichotomy,

    Is it possible to safely and effectively recharge standard alkaline (AA, AAA and 9v) batteries with a standard off the shelf NiMH battery recharger? And if so, how many times would it work. I'm thinking of energizer batteries with an energizer recharger. cheers.

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  22. Started by avarage,

    Hello, this is my first thread in the forum. Can someone please show me a link or reply with the proper method for an oxidation experiment. Tetrahydrofuran is the chem being oxidized with Calcium Hypochlorite as the oxidizing agent, and HCl and Methanol. Thanks so much i've been going crazy over this.

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  23. Started by drwilder,

    Hello Everyone! Recently I've drawn up some plans for a smallish potato launcher that would incorporate an electric ignition system. Most people seem to use stunguns or piezoelectric BBQ lighters, but I was wondering if a small 7.2 volt NiCad battery (or something similar) would be capable of producing one or two sparks for the ignition. If so, would it be reliable enough? Thanks

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  24. Started by Ramino,

    I need to calculate bars of pressure of a sparkling wine containing 3.92 gram of CO2 per liter in a sealed container at standard temperature and pressure. Please help...

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  25. Started by thermonub,

    hey, I'm pretty much a novice at chemistry but i was wondering how you go about calculating the amount of chemicals for a nitration. Say i wanted to nitrate cellulose ( i know there are tons of recipes but i want to figure out how to do it myself:eyebrow: ) how would i calculate how much KNO3, H2SO4 and cotton to use? (I don't have HNO3) thanks for your time, thermonub

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