A 100.-gram sample of liquid water is heated from 20.0°C to 50.0°C. Enough KCIO3(s) is dissolved in the sample of water at 50.0°C to form a saturated solution. Based on Table G, determine the mass of KClO3(s) that must dissolve to make a saturated solution in 100. g of H20 at 50.0°C.

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀ pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4. 0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.