Investigating the Effect of Changing the Concentration of Sodium Thiosulphate in the Reaction Between Hydrochloric Acid and Sodium Thiosulphate
Introduction
The reaction equation for this experiment is:
Sodium Thiosulphate + Hydrochloric acid =
Sodium chloride + Sulphur dioxide + Sulphur + water
Plan
Input variable: Concentration of Sodium Thiosulphate.
1) 5ml Sodium Thiosulphate 25ml water
2) 10ml Sodium Thiosulphate 20ml water
3) 15ml Sodium Thiosulphate 15ml water
4) 20ml Sodium Thiosulphate 10ml water
5) 25ml Sodium Thiosulphate 5ml water
6) 30ml Sodium Thiosulphate 0ml water
I decided on these variables by doing trial runs on the experiment.
Controlled Variables:
a) Temperature
b) Volume of Sodium Thiosulphate - water solution (always 30ml)
c) Concentration of Hydrochloric Acid (always 20ml)
d) Stirring (Y/N)
Outcome Variable
Time for Sodium Thiosulphate - Hydrochloric Acid - water solution to
go cloudy.
Experiment is considered over when a cross on a piece of paper cannot
be seen by looking through the solution from above.
Proposed Method
a) I will set up the equipment - see below
b) I will pour 20ml of Hydrochloric Acid into a measuring cylinder
c) I will pour 30ml of Sodium Thiosulphate - water solution into a
measuring cylinder.
d) I will place a beaker onto a piece of white paper with a black
cross on it.
e) I will pour the contents of both measuring cylinders in and start
the stop clock.
f) When the cross cannot be seen through the solution, I will stop the
stop clock.
g) I will then repeat the experiment, but using different
concentrations of Sodium and water in the solution to see how the
reaction rate changes.
Apparatus
=========
I will be using: 1 large beaker
1 small beaker (for Sodium Thiosulphate)
1 small beaker (for Hydrochloric Acid)
2 small measuring cylinders
1 stop clock
Prediction
==========
· I predict that the higher the concentration of Sodium Thiosulphate
3. The beaker was filled with water and the metal was placed in the water.
Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate
Hydrochloric Acid, Sodium Thiosulphate Reaction. Research: What is the difference between Hydrochloric acid is a strong colourless acid formed when hydrogen chloride gas dissociates in water, used in industrial and laboratory. processes. The.
Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables.
The total volume of all the liquids will be kept the same. As will the
Investigating the Factors Influencing the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
The Arrhenius equation ln k = ln A – (Ea / RT) can be shown
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
from 10cm to 50cm to make it easier to see the difference in a graph.
Conclusion This experiment was set out to find the effect of different temperatures of hydrochloric acid on the rate of reaction with magnesium. The information recorded was then interpreted and compared to the hypothesis. From this information, a conclusion can be made to show that the rate of reaction relates to temperature in the reaction between hydrochloric acid and magnesium. In conclusion, as proven in this experiment, the higher the temperature of hydrochloric acid, the faster the reaction it has with magnesium.
We will set up a conical flask on top a cross. We will vary the
My aim in this piece of work is to see the effect of temperature on the rate of a reaction in a solution of hydrochloric acid containing sodium thiosulphate.
It is also important we keep the colour and size of the cross the same this will help keep the results fair for the experiment. Another thing we must do is to make sure that the beaker is completely clean and free of any water or any other substance before we attempt to start the next experiment.