Salt Definition and 265 Threads

  1. Mk

    Discover the Science Behind Salt's Ability to Melt Ice

    Of course I mean my table salt, specificly, but how does salt melt ice?
  2. M

    Can salt lower the freezing point of substances and make them harder to melt?

    im confused... we add rock salt to ice cream to lower freezing point. but how dose that help in making ice cream? and when we add salt to the snow on the streets in order to melt them, dosent that also lowers the freezing point? dosent that makes the snow harder to melt? thanks
  3. M

    Salt Levels: Why High Molarity Can't Support Marine Life

    Bodies with high molarity of salt (salt levels) cannot sustain marine life? but why? please help. thanks!
  4. N

    Low composition of sodium in table salt?

    low composition of sodium in table salt? today i went to supermarket for buying some food, and i discovered that some salt which is low amount of sodium??how can it be?as i learned from chemistry , the ratio of sodium and chloride is 1 to 1 .
  5. G

    What Concentrations of KH2PO4 and Na2HPO4 are Needed to Make a pH 7.00 Buffer?

    can someone please help me with this problem, its giving me lots of trouble to solve : (a) Suppose you wanted to make a buffer of exactly ph 7.00 using KH2PO4 and Na2HPO4. If you had a solution of 0.1M KH2PO4, what concentration of Na2HPO4 would you need? (b)Now assume you wish to make a...
  6. N

    Fresh water eels adaptation to Salt water

    Anybody have any ideas on where I could find some info on this. It is for a comparitive physiology course and I believe our book was written for 3rd graders (Schmit-Neilsen, Knut) so it is not much help. Our school library is pretty worthless, also. Thanks Nautica
  7. Ivan Seeking

    Scientists Finding Strange Life Forms in Great Salt Lake

    http://tv.ksl.com/index.php?nid=5&sid=97513
  8. ShawnD

    Why Is Salt Bad? How to Reduce Salt Intake

    Why is salt "bad"? Why is it that people sometimes must limit their salt intake? After my uncle had a heart attack, he was told to cut back on salt as much as possible. Why?
  9. holly

    Floating in Fresh & Salt Water: Buoyant Force & Wooden Boat Impact

    I'm really fired up about physics now. But I can't puzzle out the following: Q. When you float in fresh water, the buoyant force that acts on you is equal to your weight. When you float higher in the high-density water of Salt Lake, the B.F. that acts on you is actually: 1) greater than your...
  10. Link

    The Science Behind Salt and Wounds: Osmosis?

    Why does the wound hurt more if you pour salt (NaCl) on it? Does it have something to do with osmosis?
  11. wasteofo2

    How are electrolytes lost in sweat/why is salt?

    I understand that when you sweat, the water is to cool you and urea is excreted because it's a waste, however I don't know why salt is excreted, nor to I know how electrolytes are used in the process of sweating. Would someone care to enlighten me?
  12. D

    Using Salt Peter as gasoline improver.

    Well i read that Salt Peter is a strong oxydizer (sorry about my english) so i thought that if I mix it with gasoline then i should get more power out from my car. But won't the mixture of gasoline and saltpeter explode in the gas tank?
  13. A

    Cooking Noodles with Boiling Water & Salt

    Hi all, there's so many forums here, I really don't know if this is the right one. However... Today, I cooked some noodles. The water was boiling low, just simmering. I had a taste, and decided the noodles needed more salt. So I added some salt. And, can you believe, where I put in the...
  14. Q

    Salt Peter for Chemistry Experiment: What Is It & Where to Find It?

    I was reading a book known as the Anarchist's Cookbook recently (surely you've all heard of it) and in it, it mensions a way to make a smoke bomb with household sugar, and something called salt peter... Can anybody please tell me if salt peter is different from normal salt, and where I would be...
  15. T

    Can Guppies, Algae Eaters, & Albano Corys Tolerate Salt in Water?

    Can guppys, a alage eater, and a albanio cory tolerate salt in their water?
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