calculate the MOLALITY of the solute in the LiCl solution?

Question

If 13.30 grams of LiCl are dissolved in water to make a solution of 0.104 L, the density is found to be 1.094 g/cm3. Calculate the molality of the solute.

Answer 1

First convert LiCl to mol
Then multiply 104 (sol in mL) by your density
then subtract your grams of LiCl from that
Lastly Divide the mols of LiCl by the number you just got above and your done
Hope that helps

Answer 2

I guess you can use my question as a ref.

If 12.20 grams of LiCl are dissolved in water to make a solution of 0.103 L, the density is found to be 1.087 g/cm3. Calculate the molality of the solute.

Correct, computer gets: 2.87803727294173
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This is how I solved this:

12.9*.103=118.553 / MM of LiCl=42.39 =2794210944