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Do our urine contain NaCl salt??

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Do our urine contain NaCl salt??

Postby victor » Mon Jun 27, 2005 7:46 am

I read that in the tubulus contructus proximal, there are some Na+ active transport and the Cl- filtration..if these two ions meet, it will form NaCl..but I read again in the vesica urinaria, there's no NaCl there...the last step before goin' to vesica urinaria is giving the H+ and K+ to increase or decrease pH. the question is...id NaCl reabsorbed again??or it's excreted with the others??
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Postby MrMistery » Mon Jun 27, 2005 9:16 pm

Ok... This is basic chemistry: when you put a salt into water(or any solvent) it will turn into free ions. In this case if you put salt in a glass of water you get Na+ ions and Cl- ions. we say that the salt has disolved. Urine contains Both Na+ and Cl- ions, but they are not under the form of NaCl
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Postby victor » Wed Jun 29, 2005 7:58 am

Ok..now I got it..but in my question it asked do our urine contains NaCl??Now I'll answer 'no'..right?? thanks for the answer.. :wink:
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Postby MrMistery » Wed Jun 29, 2005 7:13 pm

I don't know if you should answer yes or no. If it was me i would say no. But if this a homework question, don't be surprised if your teacher tells you that you should have said yes. If he/she does, just explain him/her like i explained to you and you will get the points :D
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Postby Natldnel » Thu Jun 30, 2005 8:24 pm

I would say yes... Personally, i think this question is more of like about the composition of urine... Like there's urea, salt, water etc... So yeah, it should be a yes...
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Postby victor » Fri Jul 01, 2005 12:01 pm

The question is like this:
Our urine contains urea, amonia, creatin, creatinine and NaCl. (right/wrong)

I would say that this statement is right because it wasn't written NaCl (s) so I conclude that the NaCl is in the (aq) form as Na+ and Cl-
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Postby MrMistery » Fri Jul 01, 2005 8:33 pm

Yep... say it is correct... I have never heard of this expression(NaCl in urine) but you can look at it like that... The thing is urine contains a lot of other ions such as Ca2+, Mg2+ etc... So it would contian NaCl but also a lot of other stuff... But as that question is adressed, the answer is deffinetly yes
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Postby victor » Sat Jul 02, 2005 1:48 pm

Thanks for the answer.. :lol:
Actually the sentence isn't specific enoug..but no prob.
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Postby 1luxorone » Sat Nov 07, 2009 10:19 pm

i know this is a very old thread.
but i was wondering, would it be possible to extract salt from urine, and if so how would you go about it?
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Postby JackBean » Sun Nov 08, 2009 7:06 am

Evaporate water? :lol:
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Postby mith » Sun Nov 08, 2009 4:25 pm

add kcl.
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Re: Do our urine contain NaCl salt??

Postby zami'87. » Fri Nov 13, 2009 11:18 pm

@mith
I think it has something to do with solubility on different temperatures(making solution can be endothermic or egzothermic,it depends on salt)..and fractional crystalization..
KCl? I think he should add KNO3?
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