Ni(pme3)4 reacts with phosphites , p(or)3 to produce ni(pme3)3(p( (a) what geometry do you expect for these nickel compounds (b) based on the 18 electron rule, what mechanism would you expect for the reaction the rate constant for the reaction is identical with different r groups in the phosphite. based on this result do you think the reaction follows a dissociative, associative or interchange mechanism? (10)

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

the ratio of the conjugate base to the acid required to attain the desired ph.