010. Solving a chemistry problem
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Product description
- In standard solutions of CdSO4 with different Cd2 activities, the electrode potentials of a cadmium-selective electrode relative to a silver chloride electrode were measured
acd, mol/l 1.0*10-1 1.0*10-2 1.0*10-3 1.0*10-4 1.0*10-5
E, mV 75.0 100 122 146 170
Based on these data, a calibration graph was constructed in coordinates E - paCd. The test solution of cadmium salt with a volume of 10.00 ml was diluted with water to 50.00 ml in a volumetric flask and the electrode potential of the cadmium-selective electrode in the resulting solution was measured - Ex, mV 89.0
Determine the activity (mol/l) of the test solution of cadmium salt
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