Recent content by SlidemanD

It's an old Dell Latitude, and I'm not even sure if the controller is on the keyboard itself or integrated in the mobo.

The pressure of the O2 is not significant in the ignition process, because the combustion reaction with a given hydrocarbon in oxygen (or any chemical reaction for that matter) has a calculable and constant http://en.wikipedia.org/wiki/Activation_energy" . This energy is independent of...

Hello all, I recently parted out an old dell notebook and am left with a nice, tactile, small, flat keyboard. I want to install it on my frankenstein computer, which has a very convenient case mod for this. I've looked around for pinouts and such to get ps2 or usb going, but to no...

OH! I remember Nernst now! It will make a voltage, but a terribly weak one. Thanks.

Wait, how can a voltaic cell work on simple brine if one of the reactants in the net ionic equation is an ion of an electrode metal?

The problem, as I understand it, has nothing to do with the composition of your coin electrodes, but rather with the connections between each cell and the solutions used for each half reaction. You can get some respectable voltages with those metals but you also need solutions of the...

Many thanks, all - this is very helpful. When I learn a concept, I fail at remembering it unless I feel the topic has been logically proved in my own mind. Understanding a bit more about the mathematics behind kinetics seems to "complete" the concepts thereof.

I'm nearing the end of AP Chemistry, and in review for the big test I came across my old friend, Chemical Kinetics. Also being near the end of Precalculus, the "differential" and "integral" laws piqued my interest. Remembering that I have not taken any Calculus lessons, can someone help...

So since the object of this reaction is to plate out copper, increasing the amperage drawn by shorting the cell makes the reaction proceed more quickly. So how can I adjust my salt bridge to accomplish this? It seems that a bridge short in length with a wide diameter would be ideal. Is this...

Look in Electronics, I think they have diodes that do the same thing ;)

Personally, I don't want to write down all the spectator ions all the time. It just saves time and effort not to write down things that don't react at all.

Hey, thanks for the reply. I thought the rate determining step would relate to the actual oxidation or reduction reactions taking place at the electrodes, so calculation of shorted amperage would at least be feasible. But alas, the mass transfer over the salt bridge is logically much...

Its the same concept as Hydrogen Chloride gas. It could be an acid if it was aqueous.

Hello all, I am an AP Chemistry student currently studying electrochemistry. The other day, some friends of mine and I discovered some waste copper oxide laying around the lab. We thought, "Why not reduce all the copper out of this?", and so we set to work. We got our experiment...