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Why should you leave a lighted Bunsen with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
What is the air inlet of Bunsen burner?
As you are aware, the flammable gas goes into a Bunsen Burner through the rubber tube. To burn the gas, you need oxygen, in air. By controlling the amont of air available, you vary the colour, temperature and ferocity of the flame. Te air inlet is a hole at the base of the tower. It has a collar around it which can be rotated to vary the amont of air available. If the collar is closed, no extra air is added and the only available oxygen comes from the air around the flame. With so little oxygen, the gas doesn't burn to completion and carbon soot is produced. This makes the flame yellow and clearly visible (for safety sake) but not as hot. If the collar is fully open, air is pulled in through the inlet and mixed with the gas before burning. This provdes more oxygen, a hotter flame and more complete combustion to carbon dioxide and water. This flame is blue with a roaring sound and can be almost invisible to the casual abserver. In practice, always light a Bunsen Burner with the collar closed so that you can see the yellow flame but open the collar to give ablue flame when heating. This avoids coating everything in soot. When you have finished, close the collar again to leave the flame clearly visible and yellow for everyone to see.
Why is it necessary to turn off the gas with the gas cock rather than with the valve on the burner?
When you leave the gas cock open when you turn off the burner valve, and someone moves the burner to another gas port, there would be a serious gas leak until you turned off the gas at the gas cock.
What safety precautions should be taken when working with open flame temperatures?
When working with open flame temperatures, it is important to wear appropriate protective gear such as heat-resistant gloves and clothing. Keep flammable materials away from the flame and ensure proper ventilation in the work area to prevent the buildup of combustible gases. Always have a fire extinguisher nearby and know how to use it in case of an emergency. Additionally, never leave an open flame unattended and always follow proper safety protocols to prevent accidents.
How is salt extracted from seawater?
If you leave the salt water in an evaporating basin the water will evaporate leaving you with big crystals of salt. To speed up the evaporating reaction you can heat it over a Bunsen Burner but your crystals of salt will the smaller.
What can you use a safety flame for?
When you have to leave your Bunsen burner but need to keep it alight.
When you are not using a Bunsen burner but wish to leave the flame on you should always leave the air hole closed why?
It is less hot
Why should you leave a Bunsen burner with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
Why should the yellow Bunsen burner flame not be used for heating?
because it isnt hot enough and will leave soot on the bottom of the thing you are heating
How do you be safe using a Bunsen burner?
how to be safe using a Bunsen Burner:1. never leave the flame unattended... especially when on the blue flame.2. always wear safety glasses.3. don't heat up anything metal because they will get very hot.4. don't let young children near the Bunsen burner when it's on.5. always have someone watch it.6. turn the gas off immediately when the flame goes out.
Why do you need to know witch flame is nosier on a Bunsen burner?
Knowing which flame is noisier on a Bunsen burner can indicate potential safety concerns. A noisy flame can be a sign of improper gas flow or air mixture, which could lead to incomplete combustion and the production of harmful byproducts like carbon monoxide. Monitoring the noise level of the flame can help maintain safe and efficient operations in a laboratory setting.
Why should you leave the Bunsen burner with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
Why should you turn a Bunsen burner to a yellow flame if you need to leave it?
The yellow flame is more visible - making it easier for others to see. It's also a colder flame than the blue conical one.
How does a yellow flame on a Bunsen burner make things black but the roaring flame doesn't?
The flame of a Bunsen burner that is yellow in color will leave a black carbon residue due to the incorrect mixture of oxygen into the flame. Because there is not enough oxygen for complete combustion, the carbon reside is left behind. When the Bunsen flame has a sufficient amount of oxygen mixed in, hence the 'roaring flame', it has a blue color and does not leave a carbon residue due to complete combustion of the acetylene gas.
Why do we leave the bunsun bearner at the safety flame?
The Bunsen burner is left at the safety flame when not in use to prevent accidents and ensure safety in the laboratory. The safety flame is a small, blue flame that is less likely to cause a fire if it accidentally comes into contact with flammable materials.
Which flame on a Bunsen burner is used to heat chemicals?
It depends what you want to do! A blue flame is typically much hotter than a yellow flame. Sometimes you want to heat something very hot, and sometimes you want to heat something gently... and so you can choose which part of the flame best suits the purpose! blue flame
Why should you leave a lighted Bunsen with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
