# Net conductivity of mixtures

If we have a solution, of conductivity k1, and another solution of same volume having conductivity k2, then what will be the conductivity if I mix the 2? I think that net conductance should be the sum of individual conductance of the 2 solutions in the final beaker (where volume is doubled). But then won't the individual conductance of the 2 solutions in double the volume be different from that in the initial volume?

Also, can we say that conductivity is the conductance of unit volume of solution?

The specific conductance of a solution containing one electrolyte depends on the concentration of the electrolyte. Therefore, it is convenient to divide the specific conductance by concentration. This quotient, termed molar conductivity, is denoted by Λm $$\Lambda _{m}={\frac {\kappa }{c}}$$
• Formula for centration mixing - letting $c_m$ be the concentration of the mixture then: $$c_m = \dfrac{c_1*v_1 + c_2*v_2}{v_1 + v_2}$$ – MaxW Sep 3 '16 at 21:25