Four-eyed Vulpine Posted September 30, 2007 Share Posted September 30, 2007 Ok, this is a really nerdy game that probably only me and Foxbird will play, but I'm going to try it. Someone gives the chemical notation of a chemical compound, and the poster that correctly guesses gets to pick the next one. Here's a list of chemicals we'll use. And here we go! H | H O H - C - H H | || | | H - C - N - C - O - N - C ----- C - S - C - H | | | | | H H H H - C - H H | H C7H14N2O2S. Link to comment Share on other sites More sharing options...
Mr. Krystal Posted October 1, 2007 Share Posted October 1, 2007 I hate to go and ruin the fun, but a simple Google search for "C7H14N2O2S" yields everything you'd want to know about Aldicarb's structure: http://www.chemspider.com/RecordView.aspx?id=33840 Following a little internal structure, yields the wiki for that exact chemical, which states: Aldicarb is a carbamate insecticide with structural formula: 2-methyl-2-(methylthio)propionaldehyde O-methylcarbamoyloxime. Aldicarb is the active substance in Temik pesticide, which is effective against thrips, aphids, spider mites, lygus, fleahoppers, and leafminers but is primarily used as a nematicide. In mammals it is a cholinesterase inhibitor (prevents neurotransmitter breakdown). In case of severe poisoning, the victim dies of respiratory failure. It is also highly toxic for birds. http://en.wikipedia.org/wiki/Aldicarb Link to comment Share on other sites More sharing options...
foxbird22 Posted October 1, 2007 Share Posted October 1, 2007 We'll make the questions harder so that people will have had to have taken chemistry (or learned fundamental concepts online) in order to answer. Nomenclature and Lewis Structures are too easy, anyway. We can try dimensional analysis, stoichiometry, and chemical equations instead. Nothing too hard, though! Remember - show your work and use proper significant figures. How many atoms of oxygen in perchlorate are necessary to obtain one pound of the substance? Link to comment Share on other sites More sharing options...
Four-eyed Vulpine Posted October 1, 2007 Author Share Posted October 1, 2007 The standard atomic weight of oxygen is 16.0 grams per mole. The standard atomic weight of chlorine is 35.5 grams per mole. There are 453.6 grams in one pound. There are 4 oxygen atoms and 1 chlorine atom per perchlorate molecule. 4 mol (16.0 g) = 64.0 grams of oxygen atoms 1 mol (35.5 g) = 35.5 grams of chlorine atoms in one mole of perchlorate. 64.0 + 35.5 = 99.5 grams of atoms in one mole of perchlorate. 453.6 grams per pound / 99.5 grams of atoms = 4.56 moles of perchlorate in a pound. 4.56 mol x 5 atoms = 22.8 moles of atoms in one pound of perchlorate. 22.8 mol (4 oxygen atoms / 5 total atoms) = 18.2 moles of oxygen atoms in one pound of perchlorate. 18.2 mol x 6.022 x 1023 = 1.10 x 1025 atoms of oxygen in one pound of perchlorate. Link to comment Share on other sites More sharing options...
PuffNStuff Posted October 1, 2007 Share Posted October 1, 2007 I'm sorry but his game... is really including everyone without a genius IQ... So I am declaring this game IQ-ist.... or whatever lol. But it IS true. The average joe would look at this and say, "THIS is a game? What kind of nerds live in the forum?" Link to comment Share on other sites More sharing options...
foxbird22 Posted October 2, 2007 Share Posted October 2, 2007 What kind of nerds live in the forum? And to that question, we answer: FOUR-EYED FOXBIRD! For the awesome combination and intertwined IQ's of the both of us shall truly dominate the nerdy side of SFO for all of eternity...or however long we live. Now, then, back to geekiness! Your calculations are correct, so good job, but you messed up on the sig figs. There should only be one. :ok: Link to comment Share on other sites More sharing options...
Four-eyed Vulpine Posted October 2, 2007 Author Share Posted October 2, 2007 I started with 16.0 and 35.5, and ended on 1.10, so everything has three sig figs. I didn't multiply by anything with less than three sig figs either. Are you just referring to the decimal places? I thought sig figs included the whole number, with the exception of zeros to the left and zeros to the right that aren't part of a decimal. Link to comment Share on other sites More sharing options...
foxbird22 Posted October 2, 2007 Share Posted October 2, 2007 You're right that you were calculating with three sig figs, but your answer can only have as many sig figs as are given in the problem. Since it was 'one' pound, that's just one sig fig. If the problem read (and they do this often) 1.00 pound, then three sig figs would have been correct. Link to comment Share on other sites More sharing options...
Four-eyed Vulpine Posted October 2, 2007 Author Share Posted October 2, 2007 1 x 1025 is hardly exact. That means the answer can between 10,000,000,000,000,000,000,000,000 and 14,999,999,999,999,999,999,999,999 atoms. 30% error. Link to comment Share on other sites More sharing options...
Ramuza Posted October 4, 2007 Share Posted October 4, 2007 Uh.. This game makes my head hurt... I'll leave the smart people for this... Link to comment Share on other sites More sharing options...
foxbird22 Posted October 4, 2007 Share Posted October 4, 2007 Alrighty. State the formulas for the following compounds. You're required to show how you balanced the charges, so no Google for this one. Bicarbonate Gold (I) nitrate Calcium hypochlorite Cupric dihydrogen phosphate Lithium nitride Zinc permanganate Silver oxalate Iron (III) oxide Perchloric acid Sodium phosphate Potassium acetate Mercury (I) bromide Arsenic pentachloride Nitrous acid Hydrogen chlorate Have fun! Nomenclature is awesome. Link to comment Share on other sites More sharing options...
Four-eyed Vulpine Posted October 4, 2007 Author Share Posted October 4, 2007 Wait a minute, don't I get to ask the next question since I technically got the last one right? Link to comment Share on other sites More sharing options...
DZComposer Posted October 4, 2007 Share Posted October 4, 2007 Okay, when creating forum games let's be fair and not make them at a difficulty that would be a hindrance to anyone who wishes to participate. Feel free to restart this, but if you do please tone down the difficulty a bit. Link to comment Share on other sites More sharing options...
DZComposer Posted October 5, 2007 Share Posted October 5, 2007 The lock on this thread was disputed. Since no rules were blatantly violated, it will be unlocked while the staff reviews the lock. However, if the staff votes to lock it, the thread will be re-locked. Link to comment Share on other sites More sharing options...
foxbird22 Posted October 6, 2007 Share Posted October 6, 2007 Thanks for unlocking the thread, DZ. Link to comment Share on other sites More sharing options...
Four-eyed Vulpine Posted October 6, 2007 Author Share Posted October 6, 2007 We need a rule change. If we kept it the way it was, it would be a Google speed contest, which would be much more doable for everybody. And thanks for unlocking my thread, DZ. :( Link to comment Share on other sites More sharing options...
foxbird22 Posted October 6, 2007 Share Posted October 6, 2007 If you already know a lot about chemistry, though, you know the answer right off the top of your head. :( Link to comment Share on other sites More sharing options...
foxbird22 Posted October 13, 2007 Share Posted October 13, 2007 THIS THREAD SHALT NOT DIE! THOU MUST RACE TO GOOGLE AND ANSWER THE FOLLOWING QUESTION. Explain titration and how to reach an equivalence point. Link to comment Share on other sites More sharing options...
PuffNStuff Posted October 14, 2007 Share Posted October 14, 2007 Why? don't you know the answer? Link to comment Share on other sites More sharing options...
foxbird22 Posted October 14, 2007 Share Posted October 14, 2007 Of course I know the answer. I'm taking college-level chemistry. HINT: Acid/base neutralization reactions. Link to comment Share on other sites More sharing options...
PuffNStuff Posted October 14, 2007 Share Posted October 14, 2007 It depends on how big you want the "dose" of the chemical. Titration is used to make smaller does of a certain chemical and is mainly used in medicine. But the point where the titrant is at equivalence, is when the molecules reach the same number as the analyte. Or something to that effect. Link to comment Share on other sites More sharing options...
foxbird22 Posted October 15, 2007 Share Posted October 15, 2007 Here's your cookie! http://img130.imageshack.us/img130/6596/youeatedmycookiecm2.jpg Oops, sorry...it looked good. You get to make the next question, Puffy! Link to comment Share on other sites More sharing options...
Gene Inari Posted October 17, 2007 Share Posted October 17, 2007 Don't hold your breath Foxbird. Although I might try at one of those questions sometime. Link to comment Share on other sites More sharing options...
PuffNStuff Posted October 19, 2007 Share Posted October 19, 2007 Ok i am just going to ask a general question, as I am not so good at chemistry... What is absolute space and time? And why is it only hypothetical? Link to comment Share on other sites More sharing options...
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