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budullewraagh

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Everything posted by budullewraagh

  1. interesting. do you have any information about this book? (title, author, publisher maybe?)
  2. oh good call. yt, what sort of Al did you use? i suggest you try a powder if you didnt before
  3. well, i assumed people would find it to be an acid base reaction. btw im STILL laughing at the fact that HNO3 is a base in this case how poetic i am
  4. haha it's good to know i have the lot of you on call
  5. primaries aren't very exothermic. secondaries are oh, and black powder is a very low explosive, comparatively speaking flash powder is a high explosive (depending on what you make it with)
  6. i love esters. seriously, i'm tempted to make a bunch of alcohols and carboxylic acids just so i can esterfy things. oh, btw, i was wondering. so if i take, say, glycerol, and esterfy it with a mixture of 3 carboxylic acids (at equal concentrations), i take it my product would have the X,Y,Z ester of glycerol (where X, Y and Z represent the acids) right?
  7. i think the half reactions would be: N+5+2e- --> N+3 2Cl- --> Cl2+2e- so the overall reaction would be: HNO3+3HCl-->NOCl+Cl2+2H2O i like how nitric acid is a base
  8. AP classes are like university classes, but you can take them in high school. to get university credit, you take the AP (advanced placement) exam. if you get a 5 (highest score possible), you should receive credit anywhere. most schools give you credit if you get a 4. the only schools that give you credit with a 3 (lowest passing grade) are the poorer schools. what i have to lose is a few thousand dollars:\ but i'm going to email the professor again. i think i'll take the class, as i already have a good understanding of at the very least half of the topics covered
  9. out of curiosity, what would you use for neutralization?
  10. oy, cheaper that way. nitric isnt fun to produce and it isnt so available
  11. organic chemistry is an art. you just try a grignard reaction
  12. "nitrocellulose is just cotton soaked in an concentrated soulution of nitric and sulfuric acid." well, it's nitrated cellulose. you nitrate the cellulose using sulfuric and nitric acid. if you remove the acids, you have nitrocellulose
  13. "very likely yeah, I can`t even rem what it was I was trying to acheive at the time (that would lead me to take the same steps again). not to worry, I`m sure it`ll come back to me when I`m least able to do something about it :)" score "inorganic" not the artistic type are you?
  14. thanks for your input; i really appreciate it. to answer your question, blike, this class probably won't help me that much with admissions unless i get a recommendation from the professor, which i believe i can do. anyway, i guess i have quite a bunch of reading to do.
  15. i was accepted by harvard to take summer classes awhile back and i've been considering which class to take; CHEM S-1ab General Chemistry (30877) James E. Davis and Gregg Tucci (8 units: UN) M-F 10:45 am-1 pm. Three required 2-hour laboratories, two 1.5-hour discussion sections, and two 2-hour review sessions per week to be arranged. or CHEM S-20ab Organic Chemistry (30609) Garry Procter (8 units: UN) M-F 8:30-10:30 am. Required sections T, W, Th, F 10:45 am-12:15 pm, one laboratory session 1-6 pm and one laboratory session 6-11 pm on different days (except Friday). Weekly review sessions F 2-4 pm. Harvard College students see additional information. This course is an intensive, comprehensive introduction to the chemistry of carbon and its importance to biological molecules. Topics include current ideas of bonding and structure, major reaction mechanisms and pathways, a discussion of the analytical tools used to determine the structure and stereochemistry of organic compounds (such as infrared and NMR spectroscopy), and some of the chemistry of amino acids, peptides, carbohydrates, and nucleic acids. This course fulfills the requirement of two semesters of organic chemistry for entrance to medical school. Prerequisite: Two semesters of general chemistry or equivalent, with satisfactory grades. Students without adequate background may not be able to keep up with the course. Not recommended for high school students. This is a comprehensive survey of chemistry for the general student that emphasizes the principles underlying the formation and interaction of chemical substances: stoichiometry, states of matter, thermochemistry, atomic and molecular structure, intermolecular forces, solutions, thermodynamics, kinetics, chemical equilibrium, acids and bases, electrochemistry, and environmental chemistry. This course fulfills the requirement of two semesters of inorganic chemistry for entrance to medical school. Prerequisites: High school algebra and chemistry. i am currently a junior in high school and wanted to take AP chem this year, but couldn't due to scheduling difficulties. so instead i'm taking AP biology and AP physics and studying for the AP chem exam, to be taken this may. next year i'll actually take the class. i took a practice AP chem exam and comfortably scored a 5 before reviewing, so i think it's safe to say that i have enough credits to place out of any freshman university chem class. i want to get as much of an advanced knowledge of chemistry as possible, as soon as possible, but i also don't want to set myself up for failure. i emailed the professor who teaches this class and he said: Hi Clark, The class, Chem S- 20ab is an extremely intensive (absolute minimum of 50 hours per week) organic chemistry course that covers all the material that would normally be covered in two semesters here at Harvard. Primarily it is taken by premed students, who require (at least) two semesters of organic chemistry to apply to medical school. It assumes a thorough knowledge of and familiarity with the topics that would be covered in a college level general chemistry course, and some quantum mechanics too. It really could not be further from a class that is suitable for high school students - which is why all such students are advised so strongly against taking it. While the material is challenging, the most challenging aspect of the course is the sheer pace. There is absolutely no chance to take a little time to get the more complex topics and concepts (or indeed to follow some "interesting side-topics". Being a few days behind is not an option (if you want a reasonable grade in the course). This particularly demanding as organic chemistry is highly "cumulative". You need constantly to apply concepts and facts that were covered previously, in order to understand new material. Missing a bit and covering it later is just not possible. Also, to be honest, I would not really recommend the course to someone who is genuinely interested in chemistry. It goes too fast. For example, myself, I would not have liked to take it! I would (and did) much prefer to spend some time studying the subject - taking the opportunity to follow up on those "interesting side-topics". Finally, we do get the occasional high school students on the course, who all come with excellent track records, and a burning desire to take the course. It is our experience that they either do pretty well, or totally bomb out. One last thought - if you are considering taking the course and using it for credit at a college (or colleges) of your choice it would be wise to check with the college(s) that the course would be accepted for credit. I have attached the syllabus from last year - it will be pretty much the same this year! Hope all this helps you with your decision. Regards, Garry Procter i want to challenge myself and experience a more advanced class, but i don't want to set myself up for a hellish summer. can anyone provide insight? S20ab-2004-syllabusWWW.pdf
  16. last i checked, primaries (ex silver acetylide) are all oxidizable but stable to a degree otherwise. i just can't see the alkyne bond breaking that easily
  17. OY! if you intend to make nitric acid, promise me you won't until you show us your apparatus. nitric anhydride can easily give you respiratory damage that will go away after a few weeks but come back to haunt you in 10-15 years
  18. well Mg(OH)2+NiSO4-->MgSO4+Ni(OH)2. granted, his products dont show the nickelous cation, but i believe if he waits, he'll find some nickelous hydroxide
  19. that reminds me: thermal decomposition of lead tartarate-->lead nanodust. apparently it's very pyrophoric for a heavy metal note: everything is a suspected carcinogen in california. EVERYTHING
  20. yeah, a clockwork orange was originally a novel by anthony burgess i believe. oh, btw, that was downright dreadful, yt
  21. i think the most important thing you should know is that it is only to be mad in small quantities. personally, i suggest 5mL, mainly because you have never worked with it. just a followup: HNO3 can be more than 65%; 70% is required for most nitrations. 85% is required for some.
  22. i think the fact that your NiSO4 is insoluble is hindering your ability to react it with Al and Mg also, Mg reacts with H2O faster than Al. i think the incredibly small amount of soluble Mg(OH)2 is reacting with your NiSO4
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