Given the following reaction: O2 (g) + 2 SO2 (g) 2 SO3 (g) → D If 175.5 mL of O2 reacts with 225.5 mL of SO2 at 1.74 psi and 321 K, what is the limiting reactant? What is the theoretical yield in moles? What is the percent yield, if 157 mL of SO3 is collect at the same temperature and pressure?

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