Question 1190166: When salt and water are combined they form a saline solution, How much water must be added to a 150 mL of an 80% saline solution to produce a 30% saline solution?
Found 3 solutions by ikleyn, Alan3354, greenestamps:
Answer by ikleyn(52788)   (Show Source):
You can put this solution on YOUR website! .
Saline solution MAY NOT have a concentration higher than ~ 26% - it becomes saturated and does not dissolve more salt.
so the problem as stated SCARES readers who are familiar with Science.
About saline water, read and learn from this Wikipedia article
https://en.wikipedia.org/wiki/Saline_water#:~:text=Salt%20concentration%20in%20slightly%20saline,ppm%20(1%E2%80%933.5%25).
Below is a cut from this article, to learn for all who wish it . . .
It starts from the definition what " saline water " is
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| Saline water (or salt water) is water that contains a high |
| concentration of dissolved salts (mainly sodium chloride). |
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The salt concentration is usually expressed in parts per thousand (permille, ‰) and parts per million (ppm).
The United States Geological Survey classifies saline water in three salinity categories.
Salt concentration in slightly saline water is around 1,000 to 3,000 ppm (0.1 - 0.3%),
in moderately saline water 3,000 to 10,000 ppm (0.3 - 1%)
and in highly saline water 10,000 to 35,000 ppm (1 - 3.5%).
Seawater has a salinity of roughly 35,000 ppm, equivalent to 35 grams of salt per one liter (or kilogram) of water.
The saturation level is only nominally dependent on the temperature of the water.[1]
At 20 °C one liter of water can dissolve about 357 grams of salt, a concentration of 26.3% w/w.
At boiling (100 °C) the amount that can be dissolved in one liter of water increases to about 391 grams,
a concentration of 28.1% w/w.
To say that saline water has concentration of 80% is the same as to say that water boils at 90 °C at normal conditions . . .
Or to say that the right angle is 100°.
Answer by Alan3354(69443)  (Show Source):
You can put this solution on YOUR website! Does the 26% limit apply to all salts?
Or just to NaCl?
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KI, potassium iodide, is a salt that that can have much higher solubility in water, especially at temperatures above 70 degs C. Apx 6 times that of NaCl.
But, the term "saline" means it's NaCl, not KI, so we're back to square 1.
Answer by greenestamps(13200)  (Show Source):
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