Question

When can an x be ignored in solving an equilibrium expression derived from a ICE table?

a)whenever the equilibrium concentration for that species is relatively very small

b)whenever it is very much smaller than the term it is added to or subtracted from

c)never

d)whenever it simplifies the calculation

e)whenever it is raised to any power higher than 1

2.-the first order reaction A--->B has a k=5.67. if [A]0=.500M how long will it take[A]=0.124 M

3. A scientist conducts an experiment to determine the rate of NO formation in the reaction  N2+O2--->2NO

Initial concentration of N2 was .500 M and the concentration of N2 was .450 M after .0100 s. what is the average rate of NO formation during 100 milliseconds?

please show your work. thank you

Answer 1

PLEASE RATE MY ANSWER ?

When can an a be ignored in solving an an equilibrium Expression derived from a Ice table ? a) whenever the equilibrium concentration for that species is relatively very small. Mathematically, x << keq

- kxo.o1 7) logee - KX0.01 - loge (0.9) 0 -0.105 k= -0.105 0.01 > k 10.53 5 So, at 1st we of N₂ - kt Now, we have to calculate ang rate of No formation during milliseconds calculate final concentration IN] - [NA]e [N₂] = 0.5 e [N,] = 0.5 -1.05 IN2] = 0.5 x 0.349 - TN₂] = 0.174 M 10:53 Xol