How Does the Concentration of the Sodium Thiosulfate Affect the Rate of Reaction to Hydrochloric Acid?
Investigation
How does the concentration of the sodium thiosulfate affect the rate of reaction to hydrochloric acid?
contents
page 1: contents, aim, prediction, equation, diagram page 2: equipment, preliminary experiments page 3: page 4: page 5: page 6: page 7: page 8:
Aim:
In my investigation I am trying to find out how the rate of reaction between sodium thiosulfate and hydrochloric acid gets affected but the concentration of the thiosulfate.
Prediction:
My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This is a well informed prediction as I know that one of the factors that speeds up rates of reaction is the increasing of the substrate, this increases the amount of particles that the hydrochloric acid can react with meaning that the reaction will go faster.
Equation of the reaction:
2HCl + Na2S2O3 --> 2NaCl + SO2 + S + H2O
Factors that affect the experiment:
The main factors that affect the experiment are
The concentration of hydrochloric acid
The concentration of sodium thiosulfate
The time in which the experiment happens in
However, there are still some less important factors that could affect the results, such as:
Temperature
Human error or human interference
These factors will affect the experiment if I don’t do anything to control them. There are many ways in which I will control them
I will control the concentration’s of both hydrochloric acid and sodium thiosulfate, by making a definite measurement each time, i will have the right concentrations of thiosulfate and have the right measurement of hydrochloric acid. Another way in which I will maximize accuracy and precision of my measurements is that I will use equipment with small measurements such as mm, this allows for a more accurate reading.
I will control the time that the experiment runs for by having a good stopwatch that instantly stops/starts the time when I click it to minimize human error.
I will control
How does the concentration of the sodium thiosulfate affect the rate of reaction to hydrochloric acid?
contents
page 1: contents, aim, prediction, equation, diagram page 2: equipment, preliminary experiments page 3: page 4: page 5: page 6: page 7: page 8:
Aim:
In my investigation I am trying to find out how the rate of reaction between sodium thiosulfate and hydrochloric acid gets affected but the concentration of the thiosulfate.
Prediction:
My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This is a well informed prediction as I know that one of the factors that speeds up rates of reaction is the increasing of the substrate, this increases the amount of particles that the hydrochloric acid can react with meaning that the reaction will go faster.
Equation of the reaction:
2HCl + Na2S2O3 --> 2NaCl + SO2 + S + H2O
Factors that affect the experiment:
The main factors that affect the experiment are
The concentration of hydrochloric acid
The concentration of sodium thiosulfate
The time in which the experiment happens in
However, there are still some less important factors that could affect the results, such as:
Temperature
Human error or human interference
These factors will affect the experiment if I don’t do anything to control them. There are many ways in which I will control them
I will control the concentration’s of both hydrochloric acid and sodium thiosulfate, by making a definite measurement each time, i will have the right concentrations of thiosulfate and have the right measurement of hydrochloric acid. Another way in which I will maximize accuracy and precision of my measurements is that I will use equipment with small measurements such as mm, this allows for a more accurate reading.
I will control the time that the experiment runs for by having a good stopwatch that instantly stops/starts the time when I click it to minimize human error.
I will control