What is the concentration of chloride ions in a solution whose concentration is #6xx10^-3*mol*L^-1# with respect to #"calcium chloride"#?

1 Answer
anor277
Feb 4, 2016

#1.2xx10^-2# #mol*L^-1# in chloride ion.

Explanation:

You have quoted a solution of #CaCl_2# that is #6xx10^-3# #mol*L^-1#, and I assume this to be this concentration with respect to the compound itself (i.e. #[CaCl_2]# #=# #6.0xx10^(-3)# #mol*L^-1# this is typically understood!).

Because this a #CaCl_2# solution, for each #Ca^(2+)#, there are #2# equiv #Cl^-# ion. Chloride ion concentration is effectively doubled to give #1.2xx10^-2# #mol*L^-1#.

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