Chemistry Redox Titration *NVM. I'm dumb.. I put 2 electrons for the iron for some reason when it was suppose to be 1.. Need help once again D:. How do you do this redox titration question? A student used an acidified 6.31x10^-2 mol/L KMnO4(aq) to titrate 25.0mL samples of Fe2+(aq) solution of unknown concentration. In the reactions, the Fe2+(aq) ion was oxidized to the Fe3+(aq) ion. The student completed five trials and summarized a data in a table. Er.. I can't really type the table, so I'll just give you the avg of the 3 closest titrations (16.3mL). Ok so here's what I did (for the first few parts it should be correct) K+, Mno4-, H+, H2O so the SOA is Mno4- and H+ (note I'm not going to bother with the states, because that's not the prob
Need help. Metaphors referring to human body parts So my prof who's all about creativeness wants me to think of metaphors referring to the human body, and then sculpt it using Styrofoam, problem is, I don't have many ideas :/. Here's what I have so far: -Broken Heart (really cliche though), sweet tooth, knucklehead. Edit: I just found a really good list: However, more ideas would be greatly appreciated! Or anything you think I should really do (from or not from the list) thanks in advance :)
Chemistry Oxidation numbers help Hi I need help with oxidation numbers, I kind of understand it, but need some clarification/ a bit more help. Here's an example that I know how to do. MnO4-(aq) + H2Se(g) + H+ ----> Se(s) + Mn2+(aq) + H2O(l) So, in this equation Mn in Mno4 is +7 and so it get reduced and gains 5 electrons. Se in H2Se is -2 so it gets oxidized and loses 2 electrons. Now here's where I'm confused PbO2(s) + Pb(s) + H2So4(aq) ----> PbSo4(s) + H2O(l) (2Pb with different things? once Pb is by itself which is 0, the other one would be +4, and for PbSO4 the Pb is... wait a sec how do know what S is before finding Pb o_O) 1.How do you know which one gets reduced or oxidized? 2.Also you know how Hydrogen is always +1 and oxygen
Router changing help Hi I'm a noob at this tech stuff, anyways, I'm ditching my ISP's router this: for this: Since I'm completely new to this, I don't know if I'll have to do any additional stuff. My current router functions as both a router and modem, I don't know if my new one is though. (how can I tell?). (Or is it the other way around lol... my modem functions as both a modem and router). And no, I don't currently own a modem. . So the main question is: Can I just completely replace my old router with the new one? If the answer is no; will I have to bridge the old router (which I just learned what that even means/ how to do it haha). Also after the bridging process, I assume I just need to connect the Ethernet slots between the two rout
BIOS update problem Hi, this morning I was on my desktop and there was this ASUS BIOS utility update thing that popped up. So I let it do its thing. When it finished, I clicked the "reboot" button and my computer restarted. I waited 20 minutes and it still didn't do anything- it wouldn't connect to my monitor, and it wouldn't let me shut it down by holding the power button. So, I just unplugged the power cord and turned it back on to see if it does anything. It's been over an hour since then and nothing has changed. :/. Any help would be greatly appreciated! (I've tried posting this on other forums, but nothing solved the problem so far) -Windows 10 -Asus M32CD. This exact comp: -When I turn on the monitor it says "HDM1 NO SI
Chemistry help part 2 intramolecular/intermolecular bonds This is my second thread about Chem today.. and I need help again D: Question #1: What are Intermolecular,Intramolecular, Intranuclear bonds? (with examples please)... The more I read the definitions of stuff, the more I get confused >.< (I usually learn better with a bunch of examples) Well: I can provide you with examples, but I'm going to need some explaining please: Dry ice sublimes (intermolecular) Hydrogen atoms fuse into helium (Intranuclear) Gasoline burns in an automobile engine (Intramolecular) Water vapour condenses (Intramolecular) Question #2: What is translational, rotational, vibrational <---( those are all phase change things?), and potential/kinetic energy?