An excess of zinc carbonate was added to a 20.0 mL solution X that contains sulfide and thiosulfate ions. Reaction occured according to the net ionic equation below:
S2- + ZnCO3 → ZnS + CO32-
Upon completion of the reaction, the solution was filtered into a 50.0 mL volumetric flask and diluted to the mark.
20.0 mL of the diluted filtrate was then withdrawn and titrated with 5.20 mL of 0.01000 M standard solution of iodine.
What is the concentration (in molarity) of thiosulfate ion in the initial solution X.
Answers: 2
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