Hexie Contact Persedia. Tatie The amount of iron in ore can be quantitatively determined by trading a solution of the unknown with a standard solution of dichromate, CrO; The nellonic equation is 6Fe** (aq) + Cr, 0,2 (aq) + 14H* (aq)-6Fe?"(c) +20+++ (aq) + 7H,O(aq) + Odation-reduction reactions can be used for quantitative analyses of both solutions and solid samples. These analyses are based on the stoichiometry of the balanod equation for the reaction Standard solutions of known concentration are used to completely react with the unknown solution. The concentration of the standard solution and the volume used in the titration are accurately known and are used to calculate the concentration or amount of the analyte solution Part A The titration of 250 mL of an Iron(l) solution required 18.0 mL of a 0.236 M solution of dichromato to reach the equivalence point What is the molarity of the iron in solution? Express your answer to three significant figures and include the appropriate units. View Available Hint() 1.02 M Previous Answers Correct Correct Part The pe() in described in Para produced by desig405 gore. What was page of Pe lymas in this are Express your answer to three significant figures and include the appropriate units. View All + ? 30.6 % Submit X Incorrect: Try Again Nast Pride Feedback