1- 420 micro Siemens value is read in the conductivity device for the complex prepared at the concentration of 1×10^-3 M. Calculate the number of ions of the complex?
2- [PtNH3NO2BrCl]- IUPAC name?
I can't help you with #1.
I would name the compound as
amminebromochloronitritoplatinum(III)