# A #1.5*dm^3# volume of #0.30*mol*dm^-3# #NaCl(aq)# was mixed with a #2.5*dm^3# volume of #0.70*mol*dm^-3# #NaCl(aq)#. What is the final concentration of #NaCl(aq)#?

##### 1 Answer

Oct 27, 2016

#### Explanation:

We have to calculate the quantity of all the ions in solution, and then divide this by the total volume.

And thus

Note that