The Reaction Between Sodium Thiosulphate and Hydrochloric Acid

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Essay Sample: Page 2
To do our experiment we will use:

Ÿ Sodium Thiosulphate

Ÿ Water

Ÿ Hydrochloric acid

Ÿ A beaker

Ÿ A stop-clock

Ÿ A measuring cylinder

Ÿ A syringe

Ÿ A black cross

Ÿ Goggles

We will first check the temperature of the room by checking the

electronic thermometer on the wall. We are assuming that this is

accurate. We have no way of controlling the room temperature so when

evaluating will take this in to consideration. We could use ice to

control the temperature but this would be too time consuming and could

be inaccurate. Once the temperature has been recorded, we will get all

the equipment needed ready to use. This will make all the tests fair

Page 2

and will make the experiment safer as we will not have to search for

pieces of equipment during the experiment. Next, we will measure out

the first volume of Sodium Thiosulphate that we need for the first

experiment, this is 50cm3. We will do this by using a measuring

cylinder and putting the cylinder on the work surface as we are

checking to make sure we have the right amount. Once we are sure that

the amount we have is accurate we will then put that in to a beaker on

top of the cross. We will check the cross to make sure that it has

nothing on it that will

affect the experiment. The beaker will also be checked,
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