Natural Science Forum / Chemistry / Electrochemistry / January 2005

Model JAC0524R/3  Output: 24VDC 5A
It's used for two sump pump batteries 24/7.  It has a fan (for some
unknown reason).  Recently, it has emitted a whining sound which can
be corrected by shaking or turning the charger, or even blowing into

Can anyone advise where I can get Quartz triple distilled water from (I'm in
the UK) and what is it the best conductivity you could expect from the most
purest water
Also what is the best way of 1/ storing ultra pure water and 2/ dispensing

Does anyone know where there is an abc tutorial to Polarograph?
Cheers
Wayne

Is this group still alive and well??
Zoltan

My Braun 5564 Universal 4.5w rechargeable shaver has finally stopped working.
It's worked just fine for about 4 years, even after the batteries stopped holding a charge. Now the motor goes very
slowly.
Is it possible to bypass the batteries and route the charging unit's output to ...

Reading Electrochemistry by Hamann [1998, p.237] he says that If a cell has
a non offset (no DC) ac signal applied it will operate like "galvanic cell"
rather than an "electrolyte cell".
I was under the impression that they were the same thing.  However, a good

I have a Garmin eMap gps that requires 3.15 + .15 volts at 340 mW. I have a
Garmin car adapter/data cable and it's two cables are very long. I changed
the output jack.on a 12 volt to 3 volt car telephone adapter. This unit has
a heat sink and vents to breathe. It lasted 2 hours on ...