Can someone please explain how you can determine the salinity if you know the density of a water sample?


The test said the correct answer was if you know the chlorinity of a water sample. Although pretty sure you can find salinity with density as well?

Thanks.


basically wondering if someone can help explain why you can use density to measure salinity as well. im pretty sure using a hydrometer is a good reason, but anything else? Thanks!

This post was edited by noob_whacker on Oct 22 2013 11:57am

weeeeell, assuming you know the density of the salt (i guess its the normal kitchen salt), and that salt dissolving in water doesnt work in some weird way when it dissolves, then

total density = [salt percent*salt density + (100 - salt percent)*salt density]/100

so umm even then you wouldnt know salt percent you should be able to do it...idk. also assuming the temperature is exactly right so the water base density is 1000

i could be completely wrong cause i really have no idea about this shit, i just made it up now. but seems kinda logical to me