"Please help me with this questions."
!)the reaction is catalyzed by certain chemical species. identify the catalyst in the following mechanism:
step1: Fe^3 +2I ---Fe^2 +I2
step2: S2O8^-2 +Fe^2 --- 2SO4^-2 +Fe^3
a) write the overall reaction.
b) identify the intermediate and catalyst.

2) the brown gas No2 and the colorless gas N2o4 exist in equilibrium, 2NO2---N2O4
in an experiment 0.625 mole of N2O4 was initially present in a 5.00L vessel. the concentration of N2O4 at equilibrium was 0.0750 M. calculate Kc for the reaction using an ice chart.

Question

"Please help me with this questions."
!)the reaction is catalyzed by certain chemical species. identify the catalyst in the following mechanism:
step1: Fe^3 +2I --->Fe^2 +I2
step2: S2O8^-2  +Fe^2 ---> 2SO4^-2 +Fe^3
a) write the overall reaction.
b) identify the intermediate and catalyst.

2) the brown gas No2 and the colorless gas N2o4 exist in equilibrium, 2NO2--->N2O4
in an experiment 0.625 mole of N2O4 was initially present in a 5.00L vessel. the concentration of N2O4 at equilibrium was 0.0750 M. calculate Kc for the reaction using an ice chart.

aaronq · Answer

to write the overall reaction, write both equations as one (write the reactants of step 1 with step 2 and the products of step 1 and step 2.

the catalyst is what gets used then regenerated - overall unchanged.