The First-Order Decomposition of N₂O at 1000 K Has a Rate

question 29

Multiple Choice

The first-order decomposition of N₂O at 1000 K has a rate constant of 0.76 s^-1.If the initial concentration of N₂O is 10.9 M,what is the concentration of N₂O after 9.6 s?

• A) 7.4 × 10^-3 M
• B) 1.0 × 10^-3 M
• C) 1.4 × 10^-3 M
• D) 3.6 × 10^-3 M
• E) 8.7 × 10^-3 M

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