What is the difference between saturated KCl solution and 1M KCl solution ?

not sure if this will work.. But I will do my best.

Saturated means that the solution has dissolved the MAXIMUM that it could. If the solubility of KCl was 0.7M (mol/L) of water (i made the data up...for the sake of this explanation), then if I put in 0.7mol of KCl into 1L of water, all of it would be dissolved as expected, any more KCl added would NOT be dissolved, thus the solution(with the 15g of KCl) is now saturated.

However, if I added much much more KCl into the 1 L of water, so much that the amount of KCl inside makes the concentration to become 1 M (i.e. there are now 1 mol of KCl in the 1 L water solution), the 0.3 extra moles of KCl would not be dissolved, hence such a solution is OVER-saturated.
1mol of KCl = 39.1 + 35.45 = 74.55g, you can work out the amount of KCl is needed to make up a saturated solution, given the CORRECT solubility of KCl, since 0.7 was a made-up value, to illustrate the idea

Saturated Kcl

16.401 grams of KCl X 1 mol/g per mol = _mol _mol X mol to mol ratio = _mol divide this number by 3.380590 and X100=

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What is the difference between saturated KCl solution and 1M KCl solution ?