Investigating the Effect of Concentration on the Speed of the Reaction Between Hydrochloric Acid and Sodium Thiosulphate
Prediction:
My prediction is, the higher the concentrations, the faster the
reaction will occur in my experiment to make the x on the sheet on
paper disappear. When there is more concentration, the molecules gain
kinetic energy & the process of collision occurs. This causes the
reaction to happen more rapidly therefore making a cloudy substance
much quicker.
Hypothesis
Sodium thiosulphate has the formula Na2S2O3. It resembles sodium
thiosulphate, Na2SO4, with one less oxygen atom and one more sulphur
atom. The additional sulphur atoms can be driven out by an acid.
Equation
[IMAGE]Na2S2O3 + 2HCl
S + 2NaCl + SO2
Sodium
[IMAGE]Thiosulphate + Hydrochloric acid Sulphur + sodium
chloride + sulphur dioxide
Variables
Independent Variable - factors to be changed:
The concentration of sodium thiosulphate solution will be adjusted to
be tested at different molars. This is changing the ratio of sodium
thiosulphate to water.
Dependant variable - factor to be measured:
The time it takes for the cross to be fully out of vision will be
measured to test the rate in which acid reacts with thiosulphate. This
will be done by using a stop clock.
Molar Concentration
Molar Concentration
Volume of sodium thiosulphate solution in cm cube
Volume of Water in cm Cube
1.0
50
0
0.8
40
10
0.6
30
20
0.4
20
30
The Effect of Concentration of Hydrochloric Acid on the Rate of Reaction with Magnesium Aim: To investigate the effect of concentration of hydrochloric acid on the rate of reaction with magnesium Prediction: As the concentration of the hydrochloric acid increases, so will the rate of reaction Hypothesis: In a reaction, particles of two different reactants react together to form a product. The reaction only takes place on account of two things, if the particles collide, and if the collision has enough 'activation energy'. The two reactant particles, in this case magnesium particles and hydrochloric acid particles, must collide with each other on the correct 'collision course'. If this does not occur then no chemical reaction will take place. The reaction must also have enough energy, this can be affected by temperature, the more heat the particles have the faster they move and so the more energy therefore more chance of successful collisions.
We will set up a conical flask on top a cross. We will vary the
to be done. This was to find out what amount of each liquid would be
Investigating the Factors Influencing the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
* Concentration - I will try my best to use all the acid from the
The Effect of Temperature on the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
The Effects of Concentration on Reaction Rate with Sodium Thiosulphate ---------------------------------------------------------------------- Planning = == == =
The Effect of Sodium Thiosulphate Solution on the Rate of its Reaction with Hydrochloric Acid
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.
a bigger one so I can fit the cross under it and also be able to pour
This report discusses the effect of the reactants’ concentration on the rate of the chemical reaction. Based on the results and evaluations, it is proven that the reaction rate increases as the concentration of hydrochloric acid increases. The collected data has shown that the 2 M hydrochloric acid has a faster reaction rate than the 0.5 M acid, due to its larger volume of water displacement. In conclusion, the results obtained from the experiment support the hypothesis stated.
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.
Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid. Aim Investigation, to find out how the rate of reaction between sodium thiosulphate and hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant, or the rate of development of a product during a chemical reaction. It is measured by dividing 1 by the time taken for the reaction to take place.