dcstegg228 Posted March 17, 2006 Posted March 17, 2006 i read this on a website "A regulated DC voltage source is preferable to ordinary batteries. Use a supply with built-in current limiting- this is a feature of almost any decent power supply, but double-check just to be safe. You can start the source out at its lowest voltage setting and gradually increase the voltage until a steady, controlled electrolysis reaction is taking place. Electrolysis can force many chemical reactions to go against their "normal" (spontaneous) direction; this will occur when a certain electric potential (i.e., applied voltage) is reached. For example, an electric current can cause Pb++ ions in water to form PbO2 (solid) and H+ (aq.), a reaction which normally proceeds the other way." i have no clue whjat either of theese are but i think i made pb02 and h+ , because there is a clear solid like stuff floating around in the container i made it in.
MulderMan Posted March 17, 2006 Posted March 17, 2006 You cant electrolyse water and expect to make lead dioxide!! Before, if you would like me to write an explanation, what level of chemistry are you currently at?
dcstegg228 Posted March 17, 2006 Author Posted March 17, 2006 You cant electrolyse water and expect to make lead dioxide!! Before' date=' if you would like me to write an explanation, what level of chemistry are you currently at?[/quote'] none, i have taken no chemistry but have some understanding of it, so if that thing i thought i made stands for lead.. i didnt make it. Also, i'm in ninth grade. Oh, and i didnt attempt to make lead dioxide. What i wanted, and expected was H2 and O... or is it just H and O or neither?
5614 Posted March 17, 2006 Posted March 17, 2006 Pb is the symbol for lead. What do you mean by Pb if you do not mean lead?
dcstegg228 Posted March 17, 2006 Author Posted March 17, 2006 Pb is the symbol for lead. What do you mean by Pb if you do not mean lead? i didnt wwrite it i just got it off of a website and it said that... so i supose its horibly wrong.
MulderMan Posted March 17, 2006 Posted March 17, 2006 I can understand your confusion then from that explanation considering what you have said, sorry if i seemed abit rude! In the electrolysis of water, at the cathode (negative electrode) hydrogen gas (h2) is formed, and at the anode (positive electrode) oxygen gas (o2) is formed.
dcstegg228 Posted March 17, 2006 Author Posted March 17, 2006 I can understand your confusion then from that explanation considering what you have said' date=' sorry if i seemed abit rude! In the electrolysis of water, at the cathode (negative electrode) hydrogen gas (h2) is formed, and at the anode (positive electrode) oxygen gas (o2) is formed.[/quote'] Ohhhh, i see now. I read it wrong.
woelen Posted March 18, 2006 Posted March 18, 2006 That explanation that you read probably was about electrolysis of water with lead electrodes and sulphuric acid added to the water. This is the basic principle behind a lead/acid battery, as it is used in cars.
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