When a mechanism has been investigated in detail, it can be understood on many l

Question

When a mechanism has been investigated in detail, it can be understood on many levels of differing detail. An additional detail about addition of hydrogen halides to alkenes in non-polar solvents is that additional molecules of hydrogen halide assist the rate-determining proton transfer by hydrogen-bond salvation of the halide ion. What kinetic order is HI (the value of"x" in the equation below) would HI addition to propane exhibit according to the mechanism above? Rate = k [propane] [HI]^x The predicted kinetic order in HI is (an integer)

Explanation / Answer

slow step is called rate determining step.

In the above mechanism rate determining step involve 2 moles of HI.

So order of HI is two

Rate law

Rate = K[propane]1[HI]2

order of HI is 2

    x = 2

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