For the first-order reaction,2 N₂O(g)→ 2 N₂(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?

Question

Quizplus · Accepted Answer

For first-order reactions, the concentration decreases by a factor of 2 after each half-life. Therefore, after the first half-life, the concentration of N₂O will be 0.125 M (0.25 mol/2 L). After the second half-life, it will be 0.0625 M (0.125 M/2). After the third half-life, it will be 0.03125 M (0.0625 M/2). Therefore, after 3 half-lives, the concentration of N₂O will be 0.03125 M.

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

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