Homework Help: Chemistry

Posted by BenY on Sunday, September 26, 2010 at 12:53pm.

A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting
solution is 1.05 g/mL. The concentration of Cl- in this solution is __________ M.

can someone help me? how do i get to M?

Chemistry - DrBob222, Sunday, September 26, 2010 at 1:08pm
23.7/molar mass CaCl2 = moles CaCl2
moles Cl^- = 2 times that.
Convert 3675 g water to liters using the density. Then M = mols/L.

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