What mass of potassium chloride would be needed to form a saturated solution in 50g of water at 298k? Given the solubility of this salt is 46/100 at this temperature?
Answers
Solubility:
When the maximum amount of solute is dissolve in the solvent is called solubility. On the basic of solubility the solution are following types:
Saturate solution:
A solution which contains the maximum amount of dissolved solute at the equilibrium is called saturated solution.
Un-saturate solution:
A solution which contains lesser amount of solute as compare to saturated solution. It will be able to dissolver more solute.
Super -Saturate solution:
A solution which contains the more dissolved amount of solute as compare to saturated solution.
Given that the solubility of KCl at 298 = 46 g KCl /100 g H2O
Means 46 g KCl is required for 100 g water to make saturated solution
Hence
50 g water * 46 g KCl /100 g H2O
= 23 g KCl
Thus 23 g of potassium chloride would be needed to form a saturated solution in 50g of water at 298K.
Your answer is 20 g
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