Use this graph to answer the following questions: What is the half life of the reaction? Round your answer to 2 significant digits. Suppose the rate of the reaction is known to be first order in NH3. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure you include the correct unit symbol. Predict the concentration of NH3 in the engineer's reaction vessel after 150. seconds have passed. Assume no other reaction is important, and continue to assume the rate is first order in NH3. Round your answer to 2 significant digits. 11/2=0s <-0 S k= [NH,]- [M 0.0 X ☐

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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A chemical engineer is studying the rate of this reaction.
2NH3 (g) → N₂ (g)+ 3H₂ (g)
She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data:
(W) [EHN]
0.20-
0.15-
0.10-
0.05-
0_
20
60
t (s)
80
100
Transcribed Image Text:A chemical engineer is studying the rate of this reaction. 2NH3 (g) → N₂ (g)+ 3H₂ (g) She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data: (W) [EHN] 0.20- 0.15- 0.10- 0.05- 0_ 20 60 t (s) 80 100
Use this graph to answer the following questions:
What is the half life of the reaction?
Round your answer to 2 significant digits.
Suppose the rate of the reaction is known to be first order in
NH3. Calculate the value of the rate constant k.
Round your answer to 2 significant digits. Also be sure you
include the correct unit symbol.
Predict the concentration of NH3 in the engineer's reaction
vessel after 150. seconds have passed.
Assume no other reaction is important, and continue to
assume the rate is first order in NH3.
Round your answer to 2 significant digits.
1/2=0s
k = 0
[NH,] - Dư
☐
0.0
X
Transcribed Image Text:Use this graph to answer the following questions: What is the half life of the reaction? Round your answer to 2 significant digits. Suppose the rate of the reaction is known to be first order in NH3. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure you include the correct unit symbol. Predict the concentration of NH3 in the engineer's reaction vessel after 150. seconds have passed. Assume no other reaction is important, and continue to assume the rate is first order in NH3. Round your answer to 2 significant digits. 1/2=0s k = 0 [NH,] - Dư ☐ 0.0 X
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