Cyclopropane is converted to propene in a first–order process with a rate constant of 5.4 × 10–2 hour–1 . The initial concentration of cyclopropane is 0.150 M. Estimate the concentration of cyclopropane after 22.0 hours

The concentration of cyclopropane after 22.0 hour is 0.0457 M.

Explanation:

Conversion of cyclopropane into propene follows first order kinetics.

The integrated rate of first order kinetic is given by :

= Initial concentration of reactant

= final concentration of reactant after time t

k = rate constant of the reaction

We have :

Rate constant of the reaction = k =

t = 22.0 hour

[A] =?

The concentration of cyclopropane after 22.0 hour is 0.0457 M.

the answer is a

photosynthesis

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).