-the parts of a bunsen burner
-how to light a bunsen burner
-how to find out which point/region of the bunsen flame is the hottest
Air holes- to allow air to enter the burner
Barrel- (where gas and air are mixed) To raise the flame to a suitable height for heating/burning
Base- to support the pruner and make it more stable
Collar- To control the amount of air entering the burner
Gas Intake Tube- To allow the gas from the gas supply to rush into the burner
Gas tap- To control the amount of gas supplied to the burner
Remember to wear safety goggles before you light the bunsen burner!
How to:
Step 1: Attach the gas intake tube (rubber tube) to the gas tap
Step 2: Close the air hole by adjusting/turning the collar
Step 3: Have the lighter ready; positioned at the top of the barrel
Step 4: Turn the gas tap on completely and strike the lighter immediately and continuously if the burner is not lit. (But if it is not lit after 6 times of striking, off the gas tap and wait for awhile before trying again)
Step 5: Turn the gas tap until the flame is about 5cm tall.
Step 6: Adjust/turn the collar until the air-hole is half opened
From the experiment, I have learnt that the outer yellow cone is the hottest region of the bunsen flame :D
*Always use the glass rod when mixing liquids. Using other instruments could contaminate it.
*Even if a chemical is unused, once it has been taken out of the container, do not put it back. It could contaminate those in the container.
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