does salt disolve in water?
436636
Yes it does.\n\nIt does this because water is polar. A water molecule is bent so that it is more postive on one end & negative on the other.\n\nIn the process we call dissolving, the polar water molecule actually rips apart the Sodium Chloride molecule. The Sodium part is positive & the Chloride end is negative. It is just like little magnets ripping it apart.\n\nSo yes, salt does dissolve in water.\n\n:)
883409
I will assume that "salt" is referring to sodium chloride, NaCl.  The solubility of NaCl increases with increasing temperature and decreases with decreasing temperature.\n\nSince you are starting with a saturated solution (meaning that it contains the MAXIMUM amount of NaCl at that temperature) and you are cooling the solution to 20oC from 60oC, the cooler solution will not be able to keep the NaCl dissolved and you will observe small crystals of NaCl precipitating from the solution.
516306
Until the concentration of salt is large enough to form a saturated solution, ie. one in which no more solute will dissolve, the volume of the solvent (water) will not change.  20g of salt is not nearly enough to form a saturated solution, so the water level will remain at 500ml.
133642
Sea salt comes in fine or larger crystals. In nature it includes not only sodium chloride, but also other vital trace minerals.\ncheck out this article it should help: http://en.wikipedia.org/wiki/Sea_salt\nAlso: http://en.wikipedia.org/wiki/Table_salt
237614
Table salt doesn't get affected at all chemically.\n\nAnd it doesn't raises the boiling point, it lowers it!!!
811655
If by 'undissolved' you mean why are some salts insoluble in water, then I think we are in business.\n\nIn order for a salt to be soluble it has to be energetically favorable for the ions to separate. This requires a negative gibbs free energy. G = H - TS So you have to find the H and S values for the solid to aqueous solution and see if G will be negative for a given temperature.\n\nA method I recently learned to make insolube salts more soluble is to add other ions to the water...but you have to be careful to not add a common ion...or Le Chantliear will come into play.
1020573
it does but it's diluted.Some bodies of water have higher salt content than others.
108432
Boats do NOT displace more water than they weigh - the amount of water displaced is EQUAL to the weight of the boat. Salt water is heavier per cubic meter than pure water or fresh water, so a smaller amount of salt water would be displaced for the same weight boat. If the density of the solution was extremely high, as in mercury, the boat would appear to sit on top of the liquid.
980326
this was answered right here in Yahoo Answrs about 3 months ago:\n\n\n The river water keeps moving .This shows that there is no way of settlement of any minerals-this is the reason why the river wateris not salty.\n\n \nThe salinity of the ocean is caused by high mineral content. When water evaporates it leaves behind all of sediments and becomes pure water. When it falls as rain or snow it remains in this pure state. As it travel through rivers it picks up sediments. Most of the sediments remain in solid form and are pushed along by the river. However, salt dissolves into the water. When the water reaches the ocean, the salt deposit go as well. Over thousands and millions of years, the oceans have developed a high salt content. It's the same reason that lakes that have no outlet, such as the Great Salt Lake or the Dead Sea, become salty. \n\nAs a result of global warming, though, more fresh water is entering the ocean and its salinity levels are dropping. This can have significant environmental effects over time.
842976
20 grams\ndissolving compounds and then driving of the solvent is a common way to purify a compound. You will not lose any of the compound unless it is reactive with the solvent you dissolve it in. In the case of water and salt they are not reactive so when you drive off the water you will be left with the same amount of salt that you started with.
894325
NaCl or any salts?\n\nI don't know of any substance that "repels" a salt, other then a waterproofing.  Since salt dissolves in water you would likely have to repel the water, not the salt.
429392
i'd say you have a basic understanding of molecular chemistry, micki.\n\nhowever, to improve your hypothesis, have it say:  I think the lower temperature the slower the salt will dissolve.  This is because the ions in a salt crystal require energy to dissolve away from the rigid crystal form the are in.  there is less energy present in cold water, therefore, the cold water will take longer to dissolve the salt crystals.
408672
No.. If you were to drink salt water you would dehydrate faster as the water inside your body would be sucked out to reduce the saltyness of the water. This is called osomosis and you can't avoid that.\nHowever, it is very easy to evaporate the water off and then condense it into drinkable water. Then you could "drink" the water from the sea.\nIsrael supplies most of its fresh water from the sea by "desalination" which is the process of removing the salt.
933333
Sea water being salty, is not drinkabl. With the peoper apparatus, you can ue the sun to evaporate the sea water. Then you have to catch it as it condenses. The salt does not evaporate.Now it is drinkable.  Mineral water essentially is water from the ground that has minerals from the earth dissolved in it. When this is evaporated the minerals do not evaporate either. You can get drinkable water from sea water, but not mineral water.
507157
NaCl is the salt of a strong acid and a strong base. So when put in water it does not disturb the pH. On the other hand if you put the salt of a strong base and weak acid(CH3COONa for eg) the pH would increase and if you put a salt of weak base and strong acid(NH4Cl) pH would decrease, due to anionic and cationic hydrolysis respectively.
312689
Lets use the example of salt again. NaCl. What happens is this. Both water molecules and salt molecules are ionized molecules. When salt is added to water, the ionic bond breaks apart as the positively charged Na is attracted to the negatively charged OH in the water and the negatively charged Cl is attracted to the positively charged H in the water.
115994
Salt occurs as (Na+Cl-) \nThe water molecules come between the atoms of salt , and thus breaks the ionic bonding b/w Na+ and Cl-.Na+ is attracted to the lone pair of oxygen atom of the water molecule and Cl-to the H atom of water molecule , thus hydrolysis and solvation of salt occurs, which makes the salt to dissolve fast whereas in sugars, the molecules are quite big and moreover sugar has a planar geometry , and contains bonds like -C-H, -C-OH-, -C-O-C-, these breaking of these bonds require more energy and moreover -C- is non-polar, thus increasing the no. of C atoms will make a compound to dissolve less in water. Sugar has 6 Carbon atoms.\nThus to dissolve sugar , we need stirring.