An Investigation on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid
Chemical Background
When sodium thiosulphate is mixed with dilute hydrochloric acid it makes a
cloudy liquid of sodium chloride, water, sulphur (this makes the liquid cloudy),
and it gives of the gas sulphur dioxide. A precipitate of sulphur is made.
Sodium + hydrochloric = sodium + water + sulphur + sulphur
Thiosulphate acid chloride dioxide
The Chemical reaction happens as the particles collide because they have energy.
As they collide they make, sodium chloride, water, sulphur, and sulphur dioxide.
A reaction happens quicker when there are more thiosulphate particles to
hydrochloric acid particles.
Aim
The aim is to find out how does the rate of reaction between sodium thiosulphate
and hydrochloric acid change as the concentration of the sodium thiosulphate
changes?
Prediction
I predict that the greater the ratio of sodium thiosulphate to water the quicker
the solution will cloud over as the participate of sulphur forms. To increase
the rate of reaction you need to increase the number of collisions between the
reacting particles. In this case the more thiosulphate there is to collide with
the hydrochloric acid the quicker a reaction will happen. When the thiosulphate
is diluted by distilled water there are less particles to collide with the
hydrochloric acid there for the rate of reaction is slower. When I carried out
the preliminary experiment using 50cm3 of thiosulphate with 0cm3 of distilled
water and 5cm3 of Hydrochloric acid the reaction happened in 25seconds when
using the 2moler acid, 31seconds when using the 1moler acid and 43 seconds when
using the 0.5moler acid. The rate of reaction got slower as there were less
collision between the hydrochloric acid and thiosulphate because the
concentration of the acid got less. When we changed the concentration of the
sodium thiosulphate to 40cm3 to 10cm3 of water then add the same amount of
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Plan: In my experiment I will measure the rate of reaction between calcium carbonate and hydrochloric acid. The rate of the reaction is the speed that the reaction takes place so by measuring the rate I will measure the amount of time the reaction takes. Hydrochloric acid is a strong acid that is found in digestive juices in the stomach, it is also used for cleaning metals before they are coated. Calcium carbonate has a few forms including chalk and limestone the main use of these two materials is in the making of concrete, which is used for many things such as buildings. When you put calcium carbonate and hydrochloric acid together they react to form calcium chloride, carbon dioxide and water.
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The Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Planning. CaCO3 (s) + 2HCl (aq) ---- CaCl2 (aq) + H2O (l) + CO2 The rate of reaction depends on how hard and how often the reacting particles collide with each other. A rate of reaction is how fast a reaction takes place.
from 10cm to 50cm to make it easier to see the difference in a graph.
Investigating the Factors Influencing the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
However, in order to measure the rates of reaction, sodium thiosulphate and starch are added. Sodium thiosulphate is added to react with a certain amount of iodine as it is made. Without the thiosulphate, the solution would turn blue/black immediately, due to the iodine and starch. The thiosulphate ions allow the rate of reaction to be determined by delaying the reaction so that it is practical to measure the time it takes for the iodine to react with the thiosulphate. After the all the thiosulphate has reacted with the iodine, the free iodine displays a dark blue/black colour with the starch. If t is the time for the blue/black colour to appear, then 1/t is a measure of the initial rate.
The Effects of Concentration on Reaction Rate with Sodium Thiosulphate ---------------------------------------------------------------------- Planning = == == =
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.
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.
Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate
Rate of reaction is the speed of reaction. In essays written by young scientists, they have used concentration as variable in their experiments; some have used a light sensor. connected to a data logger, to measure the amount of light passing. through the "cloudy" liquid. 1 moles = 6.02 1023 The particles in the hydrochloric acid and sodium thiosulphate need to
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
The aim of this investigation is to: 1) find the rate equation for the reaction between hydrogen peroxide, potassium iodide and sulphuric acid by using the iodine stop clock method and plotting graphs of 1/time against concentration for each variable. Then to find the activation energy by carrying out the experiment at different temperatures using constant amounts of each reactant and then by plotting a graph of in 1/t against I/T, 3) to deduce as much information about the mechanism as possible from the rate equation.