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Why did the water rise in the beaker When the candle burned out?
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What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you put a flask over the candle in a pan of water, the water in the pan starts to slowly rise inside the flask, and as the water slowly starts to rise, the candle slowly burns out.
If you pour germinating peas in a beaker and boiled peas in another in which beaker will the temperature rise?
beaker x
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise?
the water rises because the oxygen is used up by the candle to burn and the water takes the place of the oxygen but does not the carbon dioxide formed take the place of the oxygen burnt?
Why does the water rise in a bell jar with a burning candle?
People often think that the reason is because the oxygen gets burned up, creating a vacuum into which the water is sucked, but this is not true. The reason is that the candle heats up the air in the jar, which causes it to expand. The expanding air is pushed through the water at the bottom. Note that at this stage the candle goes out. There is now no flame to heat the air and so it cools down, which makes the air shrink. This is what creates the vacuum that "sucks" the water up.But the oxygen is burned up, so doesn't that reduce the volume of the gas?Yes, the oxygen is burned up, but the chemical reaction between the candle wax and the oxygen produces carbon dioxide of roughly equivalent volume.Does the flame go out because the oxygen gets used up?Actually no. You can show that not all of the oxygen is used up when a candle burns in a bell jar by putting a mouse in the jar, which will stay alive. In fact the changing dynamics of the gases in the jar (increasing carbon dioxide produced in the combustion of wax, decreasing oxygen as it is used up in the combustion) contrive to prevent adequate oxygen from reaching the flame for the combustion reaction to continue.
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise to take the place of oxygen burnt why not the carbon dioxide formed?
Nice question. The oxygen burn forms carbon dioxide,which is soluble in water being polar,so water rise up.It takes the place of CO2.
How to measure oxygen using a lit candle?
Remember the percentage of oxygen in the world today is 21%. Get a lit candle and put it on water. Then put a beaker over the lit candle. The water should rise and fill up to 21% of the candle as there is 21% of oxygen in the world.
How long can a candle burn under beakers of different sizes?
This delightfully simple experiment may be used to estimate the percentage of oxygen in the air. Assumption is that all the Oxygen is consumed. Mount candle on a small watchglass floating on water, light the candle, and place an inverted beaker over the whole to create a water seal. Measure the rise of the water inside the beaker.
How can you prove that air is a mixture?
Stand a large beaker full of air upside down over a container filled with lime water which has a lit candle (tea light, night light) floating on its surface. The flame from the candle will burn off the oxygen in the air which will cause the water to rise within the beaker. The water won't rise right up to the top which proves that their are other substances besides Oxygen in the air. And before you say that it is just the Carbon dioxide which has been produced by the burning of Oxygen, that is why Lime water was used. Lime water absorbs Carbon dioxide. So, whatever remains in the beaker is neither Oxygen or Carbon dioxide.
Do liquids expand?
Yes. liquids expand. If we heat the beaker which is filled with water using a candle, the volume will rise as the water is mixed with hot air. Hot air would want to excape, therefore liquids do expand.
What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you put a flask over the candle in a pan of water, the water in the pan starts to slowly rise inside the flask, and as the water slowly starts to rise, the candle slowly burns out.
Does water rise in a beaker when dipped into paper?
learn to spell wen and then it comes naturally
If you pour germinating peas in a beaker and boiled peas in another in which beaker will the temperature rise?
beaker x
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise?
the water rises because the oxygen is used up by the candle to burn and the water takes the place of the oxygen but does not the carbon dioxide formed take the place of the oxygen burnt?
How do you f ind volume of an object using water displacement method?
Fill a market beaker to a specific measured volume. (Eg. 50cm cubed, make sure you have not filled the beaker with water). Now place the object in the beaker with water. The water level should rise (Eg. from 50cm cubed to 60cm cubed). The difference in the original volume and the final volume is the volume of the object. That is the water displacement method.
What caused the water level to change in your lab expeirement?
if its the one were you have water in a pie pan and you have a candle standing in the water and when you light it and then you put something like a beaker over it and it takes a minute to go out, then i have your answer. there's only 20% oxygen inside the beaker and the flame uses most of it, but not quite all of it. the heat from the flame makes the air expand and when the flame dies and the starts to cool down, it makes the air contract and that makes the water level rise as it attempts to follow the hot air. it was really neat when we did it in my freshman Physical Science Lab class!
Why does the water rise in a bell jar with a burning candle?
People often think that the reason is because the oxygen gets burned up, creating a vacuum into which the water is sucked, but this is not true. The reason is that the candle heats up the air in the jar, which causes it to expand. The expanding air is pushed through the water at the bottom. Note that at this stage the candle goes out. There is now no flame to heat the air and so it cools down, which makes the air shrink. This is what creates the vacuum that "sucks" the water up.But the oxygen is burned up, so doesn't that reduce the volume of the gas?Yes, the oxygen is burned up, but the chemical reaction between the candle wax and the oxygen produces carbon dioxide of roughly equivalent volume.Does the flame go out because the oxygen gets used up?Actually no. You can show that not all of the oxygen is used up when a candle burns in a bell jar by putting a mouse in the jar, which will stay alive. In fact the changing dynamics of the gases in the jar (increasing carbon dioxide produced in the combustion of wax, decreasing oxygen as it is used up in the combustion) contrive to prevent adequate oxygen from reaching the flame for the combustion reaction to continue.
What happends to the water when heat is applied to the beaker?
If you left water in an open container for several days in summer, the water would eventually evaporate and there would be less water than you put before but if you put in in winter, the water would eventually freeze.
