The iron content of iron ore can be determined by titration with a standard KMnO4 solution. The iron ore is dissolved in HCl, and all the iron is reduced to Fe2+ ions. This solution is then titrated with KMn04 solution, producing Fe3+ and Mn2+ ions in acidic solution. Ifit required 38.37 mL of 0.0198 M KMnO4 to titrate a solution made from 0.6128 g of iron ore, what is the mass percent of iron in the iron ore?

An aqueous solution of NaCl was electrolyzed with a current of 2.50 amps for 15.0 minutes. What volume (in mL) of 0.500 M HCl would be required to neutralize the resulting solution? (Hint: H2 is produced at the cathode and Cl2 at the anode.)

How many amperes are required to deposit 0.180 grams of lead metal in 670. seconds, from a solution that contains Pb²+ ions

For the reaction   KClO4⟶KCl+2O2 assign oxidation numbers to each element on each side of the equation.

lead + nickel (II) nitrate;Balanced chemical equation:Reaction type:

For a 50ml beaker, 0.4532g of pure iron III oxide was weighed, to which 1 ml of a concentrated hydrochloric acid solution was added and then 20 ml of deionized water was added to the beaker. After mixing, the resulting solution was transferred to a 50.00 ml flask and the volume was made up with deionized water. Then 15ml of this solution into a second beaker to which 10ml of an iron iii chloride solution of 0.200 M concentration was added. Calculate the final concentration of the iron iii cation solution expressed in mol/L and in g/L, considering that the volumes are additive.

Balance the equation ( Oxidation Reduction ): Fe* + MnO4" Mn2+ Fe3

The following skeletal oxidation-reduction reaction occurs under acidic conditions. Write the balanced OXIDATION half reaction. Mn2+ + Cr»Cr* + Mn

Write the balanced NET ionic equation for the reaction when aqueous KBr and aqueous AgC₂H₃O₂ are mixed in solution to form aqueous KC₂H₃O₂ and solid AgBr

4. Balancing Redox Reactions Balance each redox reaction under the conditions indicated. 3. Fe(s) + CrO42 (aq) → Fe2O3(s) + Cr2O3(s); basic solution