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Q2) Show calculations for the creation of the following solutions from solid and 18.1 M H2SO4 stock solution.
a) 25.00 mL of 0.1000 M potassium iodide solution in 0.2000 M H2SO4
b) 25.00 mL of 0.1000 M potassium permanganate in 0.1500 M H2SO4
c) To solution “a”, 3 % hydrogen peroxide is added. In a reddish solution appears. The reddish color is due to the formation of I2. Write the balanced REDOX equation. Make sure you explain the addition of sulfuric acid. Is hydrogen peroxide an oxidation or reducing agent?
d) To solution “b”, 3 % hydrogen peroxide is added. The purple solution becomes clear (formation of Mn2+). Write the balanced REDOX equation. Make sure you explain the addition of sulfuric acid. Is hydrogen peroxide an oxidation or reducing agent?