Practice question
Question
A zero-order reaction has an initial concentration of 0.15 mol L⁻¹ and takes 75 s to reach half concentration. What is the rate constant?
Explanation
k = [R]₀/(2 t½) = 0.15/(2×75) = 1.0 × 10⁻³ mol L⁻¹ s⁻¹.
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