Determine the rate of a reaction

In summary, the conversation discusses the method for converting the known [H+] concentration to the [I2] concentration given by a graph in order to determine the time it takes for the [H+] concentration to reach 0.15mol/L. The solution involves drawing a line of best fit and finding the gradient, and also takes into account the buffering and constant pH of the solution.
  • #1
youmei0426
18
0

Homework Statement


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Homework Equations

The Attempt at a Solution


I need to know the time it takes for the [H+] concentration to be 0.15mol/L. However, the graph gives me the [I2] concentration over time, and I don't know how to convert it to the [H+] concentration. How should I solve the problem? Thanks!
 

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  • #2
youmei0426 said:
don't know how to convert it to the [H+] concentration
Why would you want to do that ?
 
  • #3
BvU said:
Why would you want to do that ?
I meant how to convert the known [H+] concentration to the [I2] concentration given to me by the graph. Because I need to know the time it takes for the hydrogen to reach the 0.15 mol/L concentration right?
 
  • #4
2
youmei0426 said:

Homework Statement


View attachment 237248
View attachment 237249

Homework Equations

The Attempt at a Solution


I need to know the time it takes for the [H+] concentration to be 0.15mol/L. However, the graph gives me the [I2] concentration over time, and I don't know how to convert it to the [H+] concentration. How should I solve the problem? Thanks!

I don't really understand what the question is, nor your answer.
[H+] = 0.015 mol/L at t = 0 aren't you told? It takes no time to get there.
The reaction rate looks to be constant. Have you tried to draw a straight line through it, or a least squares fit?
What do you understand by relative rate?
The chemical equation is telling you one mole of I2 that reacts produces how many moles of H+? Added to the store to number it is easy to know how many starting number it is easy to know how many m moles/L there are after any amount of reaction. Though whether this is relevant depends what the question is.
 
  • #5
epenguin said:
2

I don't really understand what the question is, nor your answer.
[H+] = 0.015 mol/L at t = 0 aren't you told? It takes no time to get there.
The reaction rate looks to be constant. Have you tried to draw a straight line through it, or a least squares fit?
What do you understand by relative rate?
The chemical equation is telling you one mole of I2 that reacts produces how many moles of H+? Added to the store to number it is easy to know how many starting number it is easy to know how many m moles/L there are after any amount of reaction. Though whether this is relevant depends what the question is.
Oh I think I understand it now! I just need to draw the line of best fit and find the gradient of that line. Thanks!
 
  • #6
The way the problem is worded I suppose the solution was buffered and pH was constant.
 
  • #7
Borek said:
The way the problem is worded I suppose the solution was buffered and pH was constant.

I impliedXvideos Youporn Xhamster how to change over the known [H+] focus to the [I2] fixation given to me by the chart. Since I have to know the time it takes for the hydrogen to achieve the 0.15 mol/L focus right?
 
Last edited:

1. What is the rate of a reaction?

The rate of a reaction is the speed at which a chemical reaction occurs. It is typically measured by the change in concentration of a reactant or product over time.

2. How is the rate of a reaction determined?

The rate of a reaction can be determined by measuring the change in concentration of a reactant or product over a specific period of time. This can be done by using various experimental techniques, such as spectrophotometry or titration.

3. What factors affect the rate of a reaction?

The rate of a reaction can be affected by several factors, including temperature, concentration of reactants, surface area, and the presence of a catalyst. These factors can either increase or decrease the rate of a reaction.

4. Why is it important to determine the rate of a reaction?

Determining the rate of a reaction is important because it helps us understand the kinetics of a chemical reaction. This information can be used to optimize reaction conditions, predict product yields, and develop more efficient processes in various industries.

5. How can the rate of a reaction be increased?

The rate of a reaction can be increased by increasing the temperature, concentration of reactants, or surface area. Additionally, the use of a catalyst can also significantly increase the rate of a reaction by providing an alternative pathway with a lower activation energy.

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