## What is the order of the iodine clock reaction?

The rate of reaction is first-order in potassium iodine.

## What is the order of reaction between potassium persulfate and potassium iodide?

The order of reaction between potassium persulfate and potassium iodide is first order reaction.

Is it possible that the reaction of iodide and persulfate occurs in one step?

You might guess that this reaction occurs when two iodide and one persulfate ion collide together in solution. However, a collision between three species such that they meet in the correct orien- tations to react is very rare. Most likely, the reaction proceeds in simpler steps.

### How do you calculate initial rate of reaction?

The initial rate is equal to the negative of the slope of the curve of reactant concentration versus time at t = 0….The rate of a reaction is expressed three ways:

1. The average rate of reaction.
2. The instantaneous rate of reaction.
3. The initial rate of reaction.

### How do you know if its first order or second order?

A zero-order reaction proceeds at a constant rate. A first-order reaction rate depends on the concentration of one of the reactants. A second-order reaction rate is proportional to the square of the concentration of a reactant or the product of the concentration of two reactants.

How do you calculate first order reaction?

First-Order Reactions

1. A first-order reaction depends on the concentration of one reactant, and the rate law is: r=−dAdt=k[A] r = − dA dt = k [ A ] .
2. r=−d[A]dt=k[A]
3. 2N2O5(g)→4NO2(g)+O2(g)
4. Rate=k[N2O5]m.
5. rate=k[N2O5]1=k[N2O5]
6. 1.4×10−3=k(0.020)
7. k=0.070s−1.

## What are the reaction orders of iodine with respect to persulphate?

The reaction orders of the oxidation of Iodine with respect to persulphate and iodine was determined by titrating these solutions against a solution of 0.1M sodium thiosulfate. For the first part of the experiment, a mixture of 50 cm3 of 0.4M potassium iodine and 0.115M of potassium persulphate were used.

## Does the tri-iodide ion react with persulfate?

(1) The tri-iodide ion does not react with the persulfate ion. (2) The tri-iodide ion reacts at the same rate as the iodide ion. (3) The triiodide,ion reacts but a t a rate different from that of the iodide ion. The first assumption was made by Kiss and Zombory and Kiss and Bosshnyi and will be shown to be incorrect.

How many moles of potassium iodide are produced when potassium persulfate is added?

Letting the initial concentration of potassium persulfate be a moles per liter and that of potassium iodide be 2a, then according to the stoichiometric equation, for every x moles per liter of persulfate used in the reaction, 2x moles of potassium iodide will also disappear and x moles of iodine be produced. Since the equilibrium constant may th…

### What is the purpose of the iodine oxidation experiment?

The purpose of this experiment was to determine the reaction order of the oxidation of iodine with respect to persulphate (part 1) and iodine (part 2).