Name another career that combines science with another interest
1 answer:
You might be interested in
Answer:
Explanation:
Complete the table below and determine the solubility product constant.
[Zn(NO₃)₂] 0, M Initial 0.226, 0.101 0.0452, 0.0118
[KIO₃] 0, M Titrant 0.200, 0.200, 0.200, 0.200
V₀, mL of Zn(NO₃)₂100.0, 100.0, 100.0, 100.0
V, mL of KIO₃ titrant 12.9, 12.4, 13.0, 18.3
What needs to be determined are the following for each column/sample
V0 + V, mL
[Zn²⁺] + [IO³⁻] ⇄ [Zn²⁺][IO³⁻]2
log [Zn²⁺][IO³⁻]2
Then there's the determination of Ksp itself
log Ksp = Ksp of Zn(IO3)2 =
Considering this, which of the ion products is closest to Ksp, and why?
Finally, the titration volumes for the first three samples don't vary greatly. However the last sample is considerably larger. Why is this to be expected?
The attached figures shed more light on the solution to this problem
Explanation:
Relation between temperature and activation energy according to Arrhenius equation is as follows.
k =
where, k = rate constant
A = pre-exponential factor
= activation energy
R = gas constant
T = temperature in kelvin
Also,
=
= (244 + 273) K = 517.15 K
=
= (597.15 + 273) K = 597.15 K
= 6.7
,
= ?
R = 8.314 J/mol K
= 71.0 kJ/mol = 71000 J/mol
Putting the given values into the above formula as follows.
= 2.2123
= 9.1364
Thus, we can conclude that rate constant of this reaction is .