By reversing osmosis and using pressure to push the pure water through the semipermeable membrane, leaving concentrated salt brine behind.
evaporate the water.
Saltwater can be forced through a special filter under pressure and through a process of "reverse osmosis' you will get perfectly pure water from one outlet and very salt water containing all the other impurities from the second outlet.
Saltwater can be forced through a special filter under pressure and through a process of "reverse osmosis' you will get perfectly pure water from one outlet and very salt water containing all the other impurities from the second outlet.
No. Pure water is a compound, which is a pure substance. A saltwater solution is a mixture of water and salt, and is not a pure substance.
One can effectively remove salt from saltwater through a process called desalination, which involves either distillation or reverse osmosis. Distillation involves heating the saltwater to create steam, which is then condensed back into liquid water, leaving the salt behind. Reverse osmosis uses a membrane to filter out the salt molecules, allowing only pure water to pass through.
through diffusion and osmosis. :-)
Only refined water (by distillation, ion exchangers, reverse osmosis etc.) may be pure.
I take it that there should be percentage signs in this question. How many gallons of pure water must be added to 10 gallons of 30% saltwater to make a solution that is 25% saltwater?" If 30% of the 10 gallons is saltwater that means that 3 gallons are saltwater. As only pure water will be added, we need to find out how many gallons = 100% if 3 gallons = 25%. The relationship of 100 to 25 is 4 : 1, so there will need to be a total of (3 x 4) gallons at the end of the operation. As 3 x 4 = 12, and as we started with 10 gallons, that means that we need to add 2 gallons of pure water.
Salt can be removed from saltwater through a process called distillation. In this process, the saltwater is heated to create steam, which is then condensed back into pure water, leaving the salt behind. Another method is reverse osmosis, where pressure is applied to force saltwater through a membrane that blocks the salt particles, allowing only fresh water to pass through.
Using the tern osmosis means that water will diffuse from higher to lower concentration. Being that reverse osmosis mean a method of purifying water, reverse osmosis leaves the lower concentration to go to the higher concentrated environment to become pure. Did that make sense?
The pure water is the solvent and the minerals, salts that dissolved in the water (to make salt water) are called the solute. I assumed you were talking about sea/salt water? If you are talking about common salt dissolved in water the the salt is the solute and the water is the solvent.
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semi permeable membrane.