An Experiment To Test The Reaction rates between sodium Thiosulphate and Hydrochloric Acid.

Authors Avatar
An Experiment To Test The Reaction rates between sodium

Thiosulphate and Hydrochloric Acid.

Plan

I have begun an experiment to measure the rate of reaction between Thiosulphate and Hydrochloric acid the fact

that i am going to look at is concentration. I will dilute the thiosulphate with water to change the variable

concentration. My investigation will be situated in a school labratory. I will do at least five different concentrations

in duplicate. To help me complete my investigation I will need a conical flask, clock, 3 measuring cylinders and two

beakers which will contain the Sodium Thiosulphate and Hydrochloric acid, and a piece of white paper with a black

cross marked on it. To complete my investigation I will have to measure out 25ml of Hydrochloric acid in

measuring no.1, then pour it into the conical flask which has already been placed on the paper with an X marked on

it. Now I can measure out 25ml of sodium thiosulphate in measuring cylinder no.2 so I do not contaminate the 2

solutions before i have got everything ready. Now I will be ready to pour the sodium thiosulphate into the conical

flask and start the stop clock. Shortly after the chemicals have started to react the concentration should become

cloudy, so then I will not be able to see the X anymore, then I will stop the clock and mark down the time. Then I
Join now!


shall pour the concentration away and wash out the flask to make sure that all the chemicals are gone and will not

interfere with the next concentration to make sure the result is clear. Again I will measure out 25ml Hydrochloric

acid in measuring cylinder no.1 and 23ml of sodium thiosulphate in measuring no.2. Then in measuring cylinder no.3

I will measure out 2ml of water and then add it to the sodium thiosulphate. Then pour both solutions, one at a time

into the conical flask which is already placed ...

This is a preview of the whole essay