Water Quality B/C

VeritasEnVida · Post by **VeritasEnVida** » Tue Oct 18, 2011 9:36 pm

I made this post but edited it to just fit into one post, how do you delete your own post, general forum help?

tornado guy · Post by **tornado guy** » Wed Oct 19, 2011 3:01 pm

VeritasEnVida wrote:I made this post but edited it to just fit into one post, how do you delete your own post, general forum help?

Other then on posting games I'm not allowed to delete my own posts either. I've seen other complaints about this issue... I hope the admis can fix this problem.

3nv1r0nm3ntal ch3m · Post by **3nv1r0nm3ntal ch3m** » Wed Oct 19, 2011 7:31 pm

VeritasEnVida wrote:Genissnice, can you elaborate a little on that? So clay will float when water is denser than the clay, but that only measure for that one level of salinity shouldn't it or are you saying it floats a little bit more? in increments, that's a awesome idea but one bump and you could be off by a couple percentage points which would suck
also would the clay dry out when not in use and then when it's moist that would affect it also hmmm

It shouldn't be all clay, because it would sink in any saltwater solution (except maybe like 99%). You should have a hollow glass tube with the clay inside it or attached to it. You would then measure different saltwater solutions and mark on the tube how far the salinometer sinks into the water. These measurements would allow you to figure out the salinity of water based on the density which you would calculate with the salinometer.

I am not sure what your last paragraph means, so if you explain it to me more, I might be able to help with that too.

quizbowl · Post by **quizbowl** » Wed Oct 19, 2011 8:01 pm

I wonder the legality of using electricity for the salinometer.

3nv1r0nm3ntal ch3m · Post by **3nv1r0nm3ntal ch3m** » Thu Oct 20, 2011 4:25 am

I think it would probably be allowed if it was battery operated and did not need to be plugged in. It seems like it could be extremely hard to make/calibrate.

cngu23 · Post by **cngu23** » Thu Oct 20, 2011 9:12 am

3nv1r0nm3ntal ch3m wrote:I think it would probably be allowed if it was battery operated and did not need to be plugged in. It seems like it could be extremely hard to make/calibrate.

Electricity may give more exact results if you are able to measure the exact current for each salinity level.

VeritasEnVida · Post by **VeritasEnVida** » Thu Oct 20, 2011 11:15 am

Of I see, just put a little bit of clay in the tube, would it tip do you think? and also how much saltwater are they giving us?

cngu23 · Post by **cngu23** » Thu Oct 20, 2011 11:38 am

VeritasEnVida wrote:Of I see, just put a little bit of clay in the tube, would it tip do you think? and also how much saltwater are they giving us?

They can put different concentrations of salt, but I'm not sure how much water they will give.

quizbowl · Post by **quizbowl** » Thu Oct 20, 2011 2:01 pm

Should we assume that the salinity will be based on a NaCl solution? Or should we expect to see other salts (KCl, LiCl, MgCl2, etc.) in the solution?

3nv1r0nm3ntal ch3m · Post by **3nv1r0nm3ntal ch3m** » Thu Oct 20, 2011 3:00 pm

Hopefully just NaCl. If there was other stuff mixed in, it could get really tricky and quite difficult to test. I'm not sure though.

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