Based on the data given and a rate constant of 0.031 M−1⋅min−1, calculate the time at which the concentration of reactant A will be 0.150 M . t (min) [A]t(M)
0.00 0.500
20.0 0.382
40.0 0.310
60.0 0.260
80.0 0.224

Known :

[A]₀ = 0.500 M

[A] = 0.150 M

Based on units of rate constant :

k = 0.031 M⁻¹ · min⁻¹

We know it's a second order of reaction, so

1 / [A] = k • t + 1 / [A]₀

Plug in the value :

1 / (0.150) = 0.031 • t + 1 / (0.500)

t = 150.5 min

answer; i do believe the correct answer is (river); /// good luck

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.