help analyzing data for the electrolyte challenge

ajg1 · Post by **ajg1** » Thu Mar 05, 2015 9:36 am

Hi there,

I have conducted the experiment and have my results.

The average of the three tests are as follows:

Distilled water - 43.5
Tap water - 21.5
sports drink - 21
orange juice - 106.2

I then did the conversion. For the distilled water I divided by 100000. The rest I divided by 1000.

Distilled water - .00004357
Tap water - .00717
sports drink - .021
orange juice - .1062

I'm kind of lost what to do now. Do I divide those numbers by the 9 volts? Please help

deleted-249560 · Post by **deleted-249560** » Thu Mar 05, 2015 10:06 am

Yes, conductance = current / voltage. You measured the current and the voltage is 9V from the battery.

ajg1 · Post by **ajg1** » Thu Mar 05, 2015 10:14 am

Thank - you so much for your reply

So I simply - for example:

Distilled water - .00004357 / 9 = 4.84

what is the unit after these conversions? siemens?

ajg1 · Post by **ajg1** » Thu Mar 05, 2015 10:20 am

One more question. Do my results look as they should? I hope so!

deleted-249560 · Post by **deleted-249560** » Thu Mar 05, 2015 10:31 am

Actually, I think you meant 0.00000484111111, not 4.84. Yes, the units are Siemens. You can convert to more manageable number by converting to nanosiemens (nS) and you have 4841.11 nS.

I haven't done the project myself so I can't say whether the data is good or not. Sorry - maybe someone else reading this has done it. It seems reasonable that you found orange juice to be more conductive.

help analyzing data for the electrolyte challenge

help analyzing data for the electrolyte challenge

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