Re: molarity


> The problem becomes a bit more tricky when it is a di (or tri) valent
> salt.
> For instance, a 1.0 M solution of sodium carbonate would be 2.0 M in
> sodium
> ions, and 1.0 M in carbonate ions.
> If that makes sense, then you are ahead of most introductory college
> students.
Thanks so much.
So if, in a solution, we have 3 M Na+ and 1 M CO3- is the molarity of this
solution:

2 M: 1 M Na2CO3 + 1 M Na+ that is left = 2M
or
1 M: because Na2CO3 is the only thing I should considered

?????





.