can be a hazard to the students.
Equipment and Materials the following equipment’s were required in the experiment:
Equipment Reason for Choosing it
50 cm³ of HCL of varying concentrations I chose 50cm³ as a starting point, The different concentrations will be : 1.5, 1 and 2 M
0.06g of magnesium I chose 0.06 grams and it will have a length of 3 centimeters. Magnesium ribbon is an efficient way to check the rate of reaction.
Pipette I am using a pipette to measure out the quantities for collecting the acid. I could have use a beaker or measuring cylinder to measure the volumes of acid and water, but chose a pipette because it's more accurate.
Conical Flask I'm using a conical flask as it is a good way to react chemicals in because it allows a bung with a delivery tube to be connected to the top to collect the gas, whereas beakers you cannot.
Gas Syringe I chose the gas syringe over the measuring cylinder in water because it allows me to see the product produced going up in smaller sizes because of the scale on the syringe. So the timer can be stopped exactly when it reaches the value needed.
Bung and Delivery tube To ensure that no gas leaks out of the conical flask, so that the volume of gas inside is delivered to the syringe.
Weigh balance
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So on Monday the first of February we did our preliminary experiment to check if we were going collect enough meaningful data. After an hour of trials I did not use the 0.5 M. The reason for this is that the 0.5 molar concentration reacted unreasonably slowly for the time I have to conduct my experiment, so I will use a 1.5molar concentration instead of 0.5molar. To make 1.5molar acid I can mix equal amounts of 1molar and 2molar acid. In my first test to check the use of 0.5 M I found out that the volume of gas given off by the reaction is around 90cm³, so for my actual experiment I timed to check how long it takes to collect 50cm³ of