Corrosion of pipes in boilers by oxygen can be alleviated through the use of sodium sulfite. Sodium sulfite removes oxygen from boiler feedwater by the following reaction:
2 Na2SO3 + O2 → 2 NaSO4
How many pounds of sodium sulfite are theoretically required (for complete reaction) to remove the oxygen from 8,330,000 lb of water (106 gal) containing 10.0 ppm of dissolved oxygen and at the same time maintain a 35% excess of sodium sulfite?
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