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What Mass of Solid CaO Is Needed to Remove the Sulfur

Question 9

Multiple Choice

What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 × 106 m3 of air having an SO2 concentration of 1.5 × 10-9 M? Assume that the reaction leading to removal of the sulfur dioxide is CaO(s) + SO2(g) →\rarr CaCO3(s) .


A) 56 g
B) 96 g
C) 37 g
D) 84 g
E) 43 g

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