yiovis Posted January 5, 2005 Share Posted January 5, 2005 Ha! What else are we gonna find here?!!!!!!!!! Link to comment Share on other sites More sharing options...
rickyrob Posted January 5, 2005 Share Posted January 5, 2005 QUOTE (yiovis @ Jan 5 2005, 09:27 AM) Ha! What else are we gonna find here?!!!!!!!!! Moonraker's Name That Rush Tune....wait for the next one! Link to comment Share on other sites More sharing options...
Moonraker Posted January 27, 2005 Author Share Posted January 27, 2005 The element potassium can react with oxygen to form three different compounds, K2O (potassium oxide), K2O2 (potassium peroxide), and KO2 (potassium superoxide). It is known that under all possible reaction conditions, thse two elements will combine to form a mixture of either one or two of these compounds (but never all 3), and that any possible mixture of 2 products will include K2O2 (so you will never see a mixture of K2O and KO2). When a 3.223g sample of potassium is mixed with excess oxygen and allowed to react, a total of 5.418g of solid material is produced. Using this information, determine which product or products are formed, and calculate the mass of each product. Link to comment Share on other sites More sharing options...
rickyrob Posted January 27, 2005 Share Posted January 27, 2005 Moon, I like questions like this, but I am completely farging useless at chemistry. ...I know some of the basics, but this question I have no idea where to start. I'm sure its probably quite easy Link to comment Share on other sites More sharing options...
Moonraker Posted January 27, 2005 Author Share Posted January 27, 2005 QUOTE (rickyrob @ Jan 26 2005, 11:27 PM) Moon, I like questions like this, but I am completely farging useless at chemistry. ...I know some of the basics, but this question I have no idea where to start. I'm sure its probably quite easy Actually its my final homework question, I was hoping someone could answer it for me before I get to it Link to comment Share on other sites More sharing options...
rickyrob Posted January 27, 2005 Share Posted January 27, 2005 QUOTE (Moonraker @ Jan 27 2005, 02:34 AM) QUOTE (rickyrob @ Jan 26 2005, 11:27 PM) Moon, I like questions like this, but I am completely farging useless at chemistry. ...I know some of the basics, but this question I have no idea where to start. I'm sure its probably quite easy Actually its my final homework question, I was hoping someone could answer it for me before I get to it I do know a few basics. I know that in some cases it can happen, but it seems strange that holding an element in rich oxygen can result in a compound that weighs more! This means that the potassium element must aqcuire additional proton/protons to make it weigh more, after the reaction occurs. As to how this happens, what it aqcuires, or how to determine the masses....I'm stumped Link to comment Share on other sites More sharing options...
Moonraker Posted January 27, 2005 Author Share Posted January 27, 2005 Actually I figured it out. BTW, you dont need to mess with protons or anything like that, the only thing you are working with is K and O. Link to comment Share on other sites More sharing options...
D-13 Posted January 27, 2005 Share Posted January 27, 2005 QUOTE (Moonraker @ Jan 27 2005, 12:09 AM) The element potassium can react with oxygen to form three different compounds, K2O (potassium oxide), K2O2 (potassium peroxide), and KO2 (potassium superoxide). It is known that under all possible reaction conditions, thse two elements will combine to form a mixture of either one or two of these compounds (but never all 3), and that any possible mixture of 2 products will include K2O2 (so you will never see a mixture of K2O and KO2). When a 3.223g sample of potassium is mixed with excess oxygen and allowed to react, a total of 5.418g of solid material is produced. Using this information, determine which product or products are formed, and calculate the mass of each product. I leaned this last in Chem 20.....but do I remember? hell no lol Link to comment Share on other sites More sharing options...
rickyrob Posted January 27, 2005 Share Posted January 27, 2005 QUOTE (Moonraker @ Jan 27 2005, 09:45 AM) Actually I figured it out. BTW, you dont need to mess with protons or anything like that, the only thing you are working with is K and O. OK ! Link to comment Share on other sites More sharing options...
Moonraker Posted January 29, 2005 Author Share Posted January 29, 2005 Come on guys, no one knows it . DM, didnt you get a 75 on that nerd test? Link to comment Share on other sites More sharing options...
Moonraker Posted February 15, 2005 Author Share Posted February 15, 2005 QUOTE (Moonraker @ Jan 26 2005, 11:09 PM) The element potassium can react with oxygen to form three different compounds, K2O (potassium oxide), K2O2 (potassium peroxide), and KO2 (potassium superoxide). It is known that under all possible reaction conditions, thse two elements will combine to form a mixture of either one or two of these compounds (but never all 3), and that any possible mixture of 2 products will include K2O2 (so you will never see a mixture of K2O and KO2). When a 3.223g sample of potassium is mixed with excess oxygen and allowed to react, a total of 5.418g of solid material is produced. Using this information, determine which product or products are formed, and calculate the mass of each product. OK you guys are taking too long, you all officially lose Products formed (with mass) K2O2 - 1.526g KO2 - 3.892g Link to comment Share on other sites More sharing options...
vital signz Posted March 29, 2005 Share Posted March 29, 2005 Hmmmm... could i be he DNA sequence for the SARS virus?? Link to comment Share on other sites More sharing options...
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