Question #2a46a
1 Answer
Feb 10, 2017
6.7 mol/litre
Explanation:
You need to work out the total number of moles of solute in the two portions of solution, and then divide by the total volume of the two solutions mixed, in order to get the final molarity in mol/l.
Molarity
Therefore
In the first solution, therefore,
In the second solution,
Total number of moles is 0.65 + 1.36 = 2.01 moles. Total volume is 130 + 170 = 300 ml = 0.3 litre.
So final molarity is 2.01 / 0.3 = 6.7 mol/l.