number 10 The rasching reaction produces the industrially important reducing age

Question

number 10

The rasching reaction produces the industrially important reducing agent hydrazine N2H4 from NH2 and Ocl- in basic acqueous solution.the proposed mechanism is step1 NH3+Ocl- rightarrow NH2cl+OH- fast step2 NH2Cl+Cl+NH3 rightarrow N2H3+ +Cl- slow step3 N2H5+CH rightarrow N2H4+H2O fast (i) what is the rate of step 3? (ii)which step is the rate determining step?(iii)indicate two intermediate involved in the overall reaction (iv)what is the net overall reaction ?show your work in the space below. The air pollutant NO is produced in automobile engines from the high temperatutre reaction shown below. N2(g)+O2(g) 2NO(g) if the initail concentrations of N2 and O2 at 2300K are both 1.40 M. what are the concentartions of NO,N2 and 02 when the reaction reaches equilibrium

Explanation / Answer

1) in step 3 molecularity   = 2

   because here two species are present N2H5+ and OH-. number of species involved in reaction are called molecularity

2)   step 2 determining step . always slowest step is rate determining step .

   rate =k [NH2Cl][NH3]

3) intermediates are N2H5+ and OH-

    these are we are not taking initially and we are not getting finally. in the reaction thye are produced and consumed . 4) net overall reaction

   2 NH3 + OCl- ------------------------> N2H4 + Cl- + H2O

I achieved by this equation by adding step 1 step 2 and step 3

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