Problem: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are mixed with 100.0 g of O 2.                2 SO2 + O2 → 2 SO3A)  11.5 g            B)  22.5 g            C)  67.5 g            D)  77.5 g            E)  400 g

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Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are mixed with 100.0 g of O 2.                

2 SO2 + O2 → 2 SO3

A)  11.5 g            

B)  22.5 g            

C)  67.5 g            

D)  77.5 g            

E)  400 g

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