Currently studying for an lab exam. Just have a few question about a typical Iodine Clock reaction lab.

In an typical Iodine Clock reaction lab what would be the state of effect of an increase in the initial concentration of thiosulfate ion (S2O3 2-) and the increase in the initial concentration of
starch solution?

In a typical Iodine Clock reaction lab, an increase in the initial concentration of thiosulfate ion (S2O3 2-) and the increase in the initial concentration of starch solution can have different effects. Let's explore them:

1. Increase in the initial concentration of thiosulfate ion (S2O3 2-):
- The thiosulfate ion (S2O3 2-) is a reactant in the iodine clock reaction and it reacts with iodine (I2) to form tetrathionate ion (S4O6 2-). This reaction occurs within a fixed time period (known as the "clock time").
- By increasing the initial concentration of thiosulfate ion, you are increasing the number of thiosulfate ions available for the reaction to occur.
- As a result, the reaction between thiosulfate ion and iodine will be faster, leading to a shorter clock time.
- In other words, the color change that occurs when the iodine is produced will appear more quickly.

2. Increase in the initial concentration of starch solution:
- Starch is usually added as an indicator in the iodine clock reaction.
- Starch forms a complex with iodine, resulting in a blue-black color.
- By increasing the initial concentration of starch solution, you are increasing the number of starch molecules available to form complexes with iodine.
- This can enhance the visibility of the color change and make it easier to detect when the iodine is produced.

It's important to note that the specific effects may be influenced by other factors in the reaction, such as the concentrations of other reactants and the temperature of the system. To have a more accurate understanding of the effects, it is advisable to consult the specific procedure or experiment instructions provided by your lab manual or instructor.