Advertisement Remove all ads

What are the values of the following at the same time? - Chemistry

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads
 

Consider the reaction

`3I_((aq))^-) +S_2O_8^(2-)->I_(3(aq))^-) + 2S_2O_4^(2-)`

At particular time t, `(d[SO_4^(2-)])/dt=2.2xx10^(-2)"M/s"`

What are the values of the following at the same time?

a. `-(d[I^-])/dt`

b. `-(d[S_2O_8^(2-)])/dt`

c. `-(d[I_3^-])/dt`

 

 
Advertisement Remove all ads

Solution

Rate of reaction

`-(1/3)(d[I^-])/dt = -(d[S_2O_8^-2])/dt = +(d[I_3^-])/dt = +(1/2)(d[SO_4^-2])/dt`

`(d[SO_4^-2])/dt=2.2xx10^-2 "M/s"`

(a) 

`-(1/3)(d[I^-])/dt = (1/2)(d[SO_4^-2])/dt`

`-(d[I^-])/dt=3/2xx2.2xx10^-2`

`-(d[I^-])/dt=3.3xx10^-2 " M/s"`

(b)

`-(d[S_2O_s^(-2)])/dt=(1/2)(d[SO_4^-2])/dt`

`-(d[S_2O_s^(-2)])/dt=1/2xx2.2xx10^-2`

`-(d[S_2O_s^(-2)])/dt=1.1xx10^-2 " M/s"`

(c)

`(d[I_3^-])/dt=(1/2)(d[SO_4^-2])/dt`

`(d[I_3^-])/dt=1/2xx2.2xx10^-2`

`(d[I_3^-])/dt=1.1xx10^-2`

`-(d[I_3^-])/dt=-1.1xx10^-2 " M/s"`

Concept: Temperature Dependence of the Rate of a Reaction
  Is there an error in this question or solution?

APPEARS IN

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×