At a certain temperature the rate of this reaction is first order in HI with a rate constant of :7.21s?1

2HI(g)??H2(g) + I2(g)

Suppose a vessel contains HI at a concentration of 0.440M

. Calculate the concentration of HI in the vessel 0.210 seconds later. You may assume no other reaction is important.

Round your answer to 2 significant digits.

The concentration of HI in the vessel after 0.210 seconds later will be 0.097 M.

Explanation:

Initial concentration of HI =

Final concentration after t seconds = [A]

t = 0.210 seconds

Rate constant of reaction = k =

The integrated rate law of first order kinetics :

[A] = 0.0968 M ≈ 0.097 M

The concentration of HI in the vessel after 0.210 seconds later will be 0.097 M.

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

28528289 29823282 8298232 39858