Exercise 11.113 Part A Consider the reaction 2802 (g) + O2 (g) 2 SO3 (g) If 279.
ID: 698607 • Letter: E
Question
Exercise 11.113 Part A Consider the reaction 2802 (g) + O2 (g) 2 SO3 (g) If 279.3 mL of SO2 is allowed to react with 178.4 mL of O2 (both measured at STP), what is the limiting reactant? SO Submit My Answers Give Up Part B If 279.3 mL of SO2 is allowed to react with 178.4 mL of 02 (both measured at STP), what is the theoretical yield of SO3? Theoretical Yield = mo Submit My Answers Give Up Part C If 190.0 mL of SO3 is collected (measured at STP), what is the percent yield for the reaction? Percent Yield =Explanation / Answer
A)
from reaction,
volume of SO2 reacted = 2*volume of O2
= 2*178.4
= 356.8 mL
But we have 279.3 mL of SO2
So, SO2 is limiting
Answer: SO2
B)
We will use SO2 since SO2 is limiting reagent
use from reaction,
volume of SO3 formed = volume of SO2 reacting
= 279.3 mL
Answer: 279.3 mL
C)
% yield = actual yield * 100 / theoretical yield
= 190.0*100 / 279.3
= 68.0 %
Answer: 68.0 %
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