For the reaction IO₃^-(aq)+ 5I^-(aq)+ 6H⁺(aq)→ 3I₂(aq)+ 3H₂O(l) The rate of disappearance of I O₃^-(aq)at a particular time and concentration is 2.5× 10^-3 mol/(L · s).What is the rate of appearance of I₂(aq)?

Question

Quizplus · Accepted Answer

According to the stoichiometry of the reaction, for every 1 mol of I O₃^- that disappears, 3 mol of I₂ are formed. Therefore, the rate of appearance of I₂ is 3 times the rate of disappearance of I O₃^-. Rate of appearance of I₂ = 3 × 2.5 × 10^-3 mol/(L · s) = 7.5 × 10^-3 mol/(L · s) ≈ 8 × 10^-3 mol/(L · s)

For the Reaction IO3-(aq)+ 5I-(aq)+ 6H+(aq)→ 3I2(aq)+ 3H2O(l)

For the Reaction IO₃^-(aq)+ 5I^-(aq)+ 6H⁺(aq)→ 3I₂(aq)+ 3H₂O(l)