To solve this problem, we have to use the following formula:
[tex]C1\cdot V1=C2\cdot V2[/tex]In this case, C1 is 6.0M, V1 is 65ml and V2 is 750ml, use these values to find C2:
[tex]\begin{gathered} C2=\frac{C1V1}{V2} \\ C2=\frac{6.0M\cdot65ml}{750ml} \\ C2=0.52M \end{gathered}[/tex]The final concentration is 0.52M.
