Consider a certain reaction A → Products with k = 2.0 × 10^–²s^-¹. Calculate the concentration of A remaining after 100 s if the initial concentration of A is 1.0 mol L^–1.

Question

Consider a certain reaction A → Products with k = 2.0 × 10 – 2 s - 1 . Calculate the concentration of A remaining after 100 s if the initial concentration of A is 1.0 mol L –1 .

Philoid · Accepted Answer

Given,

k = 2.0 × 10^–²s^-¹

time t = 100s

Concentration [A₀] = 1.0 mol L^-1

We know,

On substituting the values,

Log(1/[A]) = 2.303/2

Log[A] = -2.303/2

[A] = 0.135 mol L^–1

Consider a certain reaction A → Products with k = 2.0 × 10–2s-1. Calculate the concentration of A remaining after 100 s if the initial concentration of A is 1.0 mol L–1.

Consider a certain reaction A → Products with k = 2.0 × 10^–²s^-¹. Calculate the concentration of A remaining after 100 s if the initial concentration of A is 1.0 mol L^–1.