Inorganic Chemistry

So I have a 9 Volt DC power supply. I connected Copper to both the Cathode and Anode. There was CuCl2 disolved in the water. Something wierd is happening. The Anode is disolving as you'd expect, But the Cathode has a Gooey Blue precipitate coming form it. My only guess is Copper Hydroxide, but wouldn't that be forming on the Anode since OH is negative? Also there is a black precipitate forming on the Cathode, but that may be form water impurities. Also, why isnt the Cathode being plated with Copper? Everyone can get Copper Plating except me Also, there was a white precipitate omn the Anode, nowhere near as much as the blue stuff though.

Hey... i'm new to these forums so be nice I have a question, and whoever can answer WILL get a cookie... anywayz, how can you get the sodium out of the sodium hydroxide? All i need from the solution is the sodium.... if you can answer me on that one, it'd be greatly appreciated

I am "electrolizing?" a Saturated solution of Sodium bicarb using Carbon electrodes just in case. Wouldn't this produce Sodium Hydroxide? If so, how would I know when the reaction is complete. The way I see it, [math]\cf{CO2}[/math] Production will taper off and [math]\cf{O2}[/math] production will start as the Sodium bicarb is converted. Is there any way to test for sodium Hydroxide? Thanks.

Can anyone explain to me what Ionisation energy, electron affinity & electronegativity is ? Everytime I try to ask my teacher and get him to explain it to me, he sneaks away !

i have succeeded in getting potassium chlorate for dirt cheap, but it is very impure... quite a bit of sulfur contaminents. i need the potassium chlorate for a few experiments but it has to be free of sulfur and other contaminates is there a way other than filturing and boiling off water to purify this?

http://www.tf.uni-kiel.de/matwis/amat/def_en/kap_5/advanced/t5_1_4.html the chemistry of steel is complicated and the story of the different ways it was made is fascinating and goes back to roman times (the Celts may have had better steel than the Romans who conquered them) (how was Damascus steel made? was the Samurai sword unique or did old German smiths use similar methods?) even the role of magic is considered, and the relation to alchemy. good article

while doing electrolysis with copper electrodes and baking soda electrolyte to make copper oxide, it makes a slightly odd smell and burning the gas by putting a lighter above it makes a dark black smoke. also there are both green strands and black lumps formin in the water. im assuming that the green is copper oxide (what im after) but is the black stuff or gas dangerous? can anyone tell me what the gas is?

how come sulfate arent basic, why dont they form bi sulfate like carbonates form bicarbonate?

my teacher claims no one elements can gain/lose more than 4 electrons- how is this possible since oxidation states get higher like 6? where am i confusing myself and wats the jist?

For my school chemistry coursework (IB level) I have been asked to investigate Redox Reactions. No other prompt. This is making it really difficult for me to think of a focussed research problem to investigate. Help me with ideas please. =) Thanks in advance.

will hydrogen react with sulphur??? i believe that they willl, becuase sulphur and oxygen have the same number of electrons in their outer electron cloud, right????????

how can i break down CO2 into oxygen and carbon??????????

I'm playing around with salts of the nitronate ion. All experiments I do point in the direction of a dark brown/red ion, but from a chemistry expert, I understood that nitronate ion is colorless. The expert, however, does not have personal experience with nitronate salts. I prepared the nitronate salt by adding a solution of KOH to a solution of nitromethane. Nitromethane, when dissolved in water, is converted to nitronic acid (the so-called aci-form of nitromethane): H3C-NO2 <----> H2C=N(O)OH The H-atom at the right is the acidic one. When hydroxide is present in solution, then the liquid turns red/brown. According to literature the following reac…

Characteristics of it pls. ? Anybody know any links regarding buckys ? Any pics would also be appreciated !

Hi, I did electrolysis on some copper electrodes in a sodium chloride soln. This gave me a nice blue coloured soln/gell at the bottom. This after time turned red/brown ish. So from what I know this was happened: copper chloride + sodium hydroxide ---> copper hydroxide + sodium chloride Then I added some phosphoric acid, this cleared the mixture. I'm not sure what happened at this point. I think (sue to a clear soln) that this happened: Copper hydroxide + phos acid ----> copper phosphate + water But then this happened: Copper phosphate + sodium chloride ---> copper chloride + sodium phosphate This soln was crystal …

how do i make hydrogen peroxide? i can't buy 90% hydrogen peroxide solutions becuase i can't find them. the only thing they sell at drug stores is 3% solution. does anyone know how to make it or make a high concentration???????????

Hello, I was wondering if there was an online resource that would tell me at what voltages certain ionic bonds are broken. I was reading something woelen said in a different thread and apparently when the voltage was at a precise level electroplating began. So is there some resource out there I could use for like if I had a solution of NaCl and water, and I only wanted one of the compounds to be broken down. Is this even possible? Thanks!

At my current level of chemistry learning at school, explanation of the chemical cells is at the level of "how", but I want to know "why" for the 1st instance, how come the electrons move through the metals at the negative pole along with wires instead of moving towards the electrolyte?? 2ndly, what makes the less reactive repulsive from reacting with the electrolyte if the more reactive metal pole is in presence??? thanks

Hello, Does anybody know where I can get a copy (or knows of a website that shows) the expt of droping Cesium in to a bath water that was shown on the Brainiac TV series? I've been reading that a lot of chemistry teachers are using this film clip in order to show the reactivity of the group 1 metals, but I can't find the clip anywhere on the net. Thanks.

Hey! I made some Copper (II) Chloride this past summer and I was thinking maybe I could Do a single replacement reaction to recover my Copper in Powdered form. So I disolved some CuCl2 In water and threw in some Aluminum foil. Sure enough the aluminum decentigrated and a brown precipitate was left on the bottom. I decanted the suposed resulting Aluminum Chloride and Left the Copper powder to dry in a glass cup. I came home for mschool today to find that around the edges of the copper it was green; A clear sign of a Copper salt. It's possible not all the Copper Chloride was converted to Aluminum chloride. Regardless. I filled the cup and decanted some liquid twice more to …

Hey, everyone. I was reading up on electrolysis of molten NaCl, but I didn't really wanna try it cause I don't want to mess with the chlorine gas (by the way, would chlorine really accumulate to toxic levels if I performed the electrolysis outdoors over a long period of time?). I figured that Potassium Nitrate, KNO3, should work if I wanted to create potassium intead of sodium, as I know that it has a reasonably low melting point (around 800 defrees F, I think), and I know that KNO3, dissolved in water, will become a K+ ion and a NO3- ion. Therefore, KNO3 should electrolyse into K and NO3, correct? Before I tried anything I just wanted to inquire from some …

Does any of you now of an easy way of make solid iodine? I know Iodine is made by oxidizing Iodide with Chlorine gas: 2I- + Cl2 -> 2Cl- + I2 Also I know it can be made by: NaI(s) + H2SO4(l) -> HI(g) + NaHSO4(s) and then: HI(g) + H2SO4(l) -> I(g) + SO2(g) +H2O(l) I know that these methods can be applied but I don't have good equipments for me to trapping and guiding the gases(at the moment) , so any body got any other methods that involve gases and aren't a little too complex for doing this????

Does someone know of a way I can get my hands onto a bit of sodium (not literally of course ), either somewhere to buy it or detailed instructions on how to isolate it (by electrolysis, etc...)? I'm not talking about 100 g to drop into a pool, more like 10 g to experiment with in small amounts at a time. Website links, anyone?

I know it has to do with electrolysis but I can't find detailed pictures with instructions on the web/google to take out sodium from . So how do I obtain Na? Afterwards, how do i contain it and keep it safe? I read somewhere if you use graphite *looks at tv* wow this pokemon movie is intense... anyways... i read that you get sodium hydroxide after using graphite electrodes on a brine solution? or was it dry? either way, i want to keep breaking down things until I get sodium. i can make hydrogen very simply using liquid plumr and aluminum foil. I think i read if i use some other way, i can get Na by using the tablesalt dry..

Why metals are: 1) sonorous.. 2) shiny ??