I've found out that there are two different ways in which you can collect gas for an experiment! One is through water displacement, where as the other is using a gas syringe. The first method, is by using water displacement, where a measuring cylinder is filled with water (making sure there are no air bubbles), and turned upside down, with the mouth of the measuring cylinder still under water enabling the gas produced to be collected as it passes through the delivery tube. The other method is by using a gas syringe, in which the gas produced is collected in a syringe. The syringe is attached to a delivery tube that is connected to a flask in which the gas is being produced. Both methods allow you to collect gas however I would prefer to use a gas syringe as it produces more accurate results, therefore there are fewer anomalies as there would be fewer errors, as you are able to easily read the result, at eye level. Whereas using the first method, there is a bigger chance of an error and therefore an anomalous result as the set up is difficult to get right, and you can't get all the air out of the measuring cylinder, making this method a longer process...
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| Method 1: Water Displacement |
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| Method 2: Gas Syringe |
Which method would you prefer?... Thanks for reading.
Well done Anisha. You have not only stated which method is better but also attempted why, which is always important in explanations.
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