Natural Science Forum / Chemistry / Electrochemistry / October 2004

anyone recently recharge a non-rechargeable battery?

I thought if I used an aluminum electrode and a gold
electrode with table salt or lemon juice electrolyte, I would get about 3
volts. I only get about .63 volts
I don't have the potential list handy but these materials have are around

I think my batteries are haunted by evil spirits from another plane of
existence.They fail very often.
What can I do to remove the evil spirits?

I've charged gel/sla batteries at 50%-60% of capacity without
apparent problems. The manufacturers state that 0.1C (10% of Amp
Hour capacity) is "recommended", but that takes too long for
practical use.

Looking for pros-cons on absorbed glass matte batts for deep cycle
applications for residential power backup with inverter.
Any major advantgages over acid-lead that justify the price of these batts?
Regards,

I have calculated the following network using the cosine law.
 ___SIGGEN (Vs)_
 ¦                             ¦
 ¦--/\/\/\/\-----¦   ¦----¦

    I bought some 85 Amp hour trolling motor batteries, and I wondered if
anyone here has any experience with these that they would care to relate.

They replaced the charger that was overcharging, making the dual
lead-acid batteries release hydrogen.  So far, the CO sensor is not
registering any H2 with the new charger.
Here's the problem: The guy who installed the new charger said that as

All batteries are rechargeable. Rechargeable batteries are a scam. Therefore,
all batteries are scams. Right??

On my chemistry lesson I had this sort of exercise:
Make the balance in this reduction-oxydation reacition:
a) K2CrO4(aq) + C3H7OH + HCL ---> CrCl3(aq) + C2H5CHO + H2O + KCl(aq)
b)MoS2 + Na2CO3 + O2 ----T-----> Na2MoO4 + NaSO4 + CO2

I was wondering if there was any possibility of damage to a cell that
had a lower voltage than the others in a series-connected pack of NiCd
or NiMH cells and was allowed to self-discharge down to zero volts
(and beyond)?

How many amps in a Duracell D battery?
Thanks

Hallo everybody,
I am looking for Equation(s) describing potential of electrode for
reversible system (Nernstian case) with simultaneous adsorption of Red form
i.e. in solution exist Ox and Red in concentration [Ox] and [Red] and

I am looking for numerical methods for amperometry. I am trying to
calculate the concentration profile of two substances in solution.
These two substances form a redox couple and react on two electrodes.
I need the static solution and the solution over time as well.

I am doing research in the area of nanotech and for one of my projecs
I need to know reduction and oxidation potential of pyridine. I have
done quite extensive search of various Journal databases all the way
back to 1940's. I have also searched large number of various Handbooks