0731. Solving a chemistry problem

0731. Solving a chemistry problem

5. Among the available solutions, select the one needed to fill the key in the concentration element
Cd |CdSO4 |CdSO4| Cd
C1=0.1 mol-eq/l C1=1 mol-equiv/l
so as to eliminate the diffusion potential. Solutions: a) KNO3 sat.; b) KNO3 0.1 mol-equiv/l c) H2SO4 2 mol-equiv/l d) CdSO4 sat.; e) CdSO4 0.1 mol-eq/l.

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