Question

For the simple decomposition reaction below, rate = k[AB]2 and k = 0.30 L/mols.
AB(g) A(g) + B(g)

If the initial concentration of AB is 1.20 M, what is [AB] after 10.0 s?

Answer 1

Is that rate = k[AB]^2? And I assume the units are L/mol*s. If so then it is a second order reaction and
(1/A) - (1/Ao) = kt
Substitute and solve for A