Homework SourseHow many grams of AlCl3 would you need to add to 500 ml of w
How many grams of AlCl3 would you need to add to 500 ml of water to make a solution
with a milliosmolality of 280? [AlCl3 is an ionic compound].
Solution
Osmolality is the number of molecules and ions per kilogram of solution.
1 mole of AlCl3 gives 4 moles of particles upon dissociation.
Assuming A grams (= 103 milligrams)of AlCl3,
milliosmols = A x 103 mg x (1mmol/133.5 mg) x (4 mosmol/1mmol)
milliosmolality = 280
(A x 106x 4)/(133.50 x 500) = 280
A = 4.67 grams
![How many grams of AlCl3 would you need to add to 500 ml of water to make a solution with a milliosmolality of 280? [AlCl3 is an ionic compound].SolutionOsmolali](/WebImages/20/how-many-grams-of-alcl3-would-you-need-to-add-to-500-ml-of-w-1045775-1761543920-0.webp "How many grams of AlCl3 would you need to add to 500 ml of water to make a solution with a milliosmolality of 280? [AlCl3 is an ionic compound].SolutionOsmolali")
