Question

In: Chemistry

A solution is found to be 0.0942% by weight CoCl3. What is the concentration of the...

A solution is found to be 0.0942% by weight CoCl3. What is the concentration of the Cl1- ion expressed in ppm?

Solutions

Expert Solution

0.0942% by weight menas 0.0942 g in 100 g of solution.

Concentration of Cl^-1 ion is equal to 3 times that of CoCl3 solution.

Concentration of CoCl3 in ppm = (mass of solute/mass of solution)*10^6

                                                 = (0.0942/100)*10^6

                                                 = 942 ppm

Concentration of Cl^-1 ion in ppm = 3*942 ppm

                                                      = 2826 ppm                                                  


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