What is the molarity of a potassium triiodide solution, KI3(aq), if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.500 M thiosulfate solution, K2S2O3(aq)?The chemical equation for the reaction is
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1. Consider the reaction: Cr2O72- (aq) + 14 H+ (aq) + 6 Fe2+ (aq) >>> 2 Cr3+ (aq) + 6 Fe3+ (aq) + 7 H2O (l)
In the lab, it is found that 19.30 mL of K2Cr2O7 solution is needed to react with 25.00 mL of 0.4000 M Fe2+ (aq) solution, what is the molarity of the potassium dichromate solution?
A. To standardize a thiosulfate (S2O32-) solution, 10.00 mL of a 1.25Ã10â2 M IO3- solutionare treated with excess I- to generate I3- according to Equation 3 on page 162 in the lab manual. If 5.69 mL of the thiosulfate solution are required to reach the endpoint of the titration, what is the molarity of thiosulfate in the solution?
Using this equation: I3(aq)+2S2O32-(aq)->3I(aq) + S4O62-(aq)