For the first-order reaction,2N₂O(g)? 2N₂(g)+ O₂(g),what is the concentration of N₂O after 3 half-lives if $0.25$ mol of N₂O is initially placed into a 1.00 L reaction vessel?

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Quizplus · Accepted Answer

After 3 half-lives, the concentration of a first-order reaction is reduced to $ \frac{1}{2^3} = \frac{1}{8} $ of its initial concentration. Starting with 0.25 mol/L, the concentration after 3 half-lives is $ 0.25 \times \frac{1}{8} = 0.03125 $ mol/L, which is approximately $ 3.1 \times 10^{-2} $ mol/L.

For the First-Order Reaction,2N2O(g)? 2N2(g)+ O2(g),what Is the Concentration of N2O

For the First-Order Reaction,2N₂O(g)? 2N₂(g)+ O₂(g),what Is the Concentration of N₂O