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Limewater (calcium hydroxide solution) turns colorless after bubbling through it for too long because it reacts with carbon dioxide in the air to form calcium carbonate, which is insoluble and precipitates out of the solution. This process reduces the concentration of calcium hydroxide in the limewater and causes it to lose its milky appearance.
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What is observed when carbon dioxide gas is passed through limewater for a long duration?
When carbon dioxide gas is passed through limewater (a solution of calcium hydroxide) for an extended period, the solution initially turns milky due to the formation of calcium carbonate, which is a result of the reaction between carbon dioxide and calcium hydroxide. Over time, if excess carbon dioxide is introduced, the calcium carbonate can dissolve back into the solution, forming calcium bicarbonate. This process can lead to the limewater becoming clear again after the initial turbidity.
Why did your homemade blackcurrant cordial start bubbling?
The bubbling in your homemade blackcurrant cordial could be due to the fermentation process, where yeast consumes sugars and produces carbon dioxide. This can happen if the cordial was exposed to air for too long or if there was some wild yeast present in the ingredients. It's best to discard the cordial if it has started to ferment.
How long does a homemade lava lamp take to heat up?
It may take 30-60 minutes for the homemade lava lamp to heat up and start bubbling. This can vary depending on the temperature of the room and the specific ingredients used in the lamp.
How long is the sun away the solar system?
a long, long away it takes a satalite 23600 years just to get through the whole solar system!
What is an amacrine?
An amacrine is a biological cell which does not go through a long fibrous process.
What is observed when carbon dioxide gas is passed through limewater for a long duration?
When carbon dioxide gas is passed through limewater (a solution of calcium hydroxide) for an extended period, the solution initially turns milky due to the formation of calcium carbonate, which is a result of the reaction between carbon dioxide and calcium hydroxide. Over time, if excess carbon dioxide is introduced, the calcium carbonate can dissolve back into the solution, forming calcium bicarbonate. This process can lead to the limewater becoming clear again after the initial turbidity.
What do an ant breathe with?
ants breathe through tiny holes all over their body! The ant's heart is a long tube that pumps colourless blood from the head back to the abdomen and back to the head again.
How does moths act?
they fly around then land on doors or walls and stay there for a long time. they are colourless butterflys. except there brown
Why is your lava lamp not bubbling?
There could be a few reasons why your lava lamp is not bubbling. It may not have warmed up enough yet, or the wax has hardened due to being left on for too long. Make sure the lamp is placed on a flat surface and is not exposed to drafts, as this can affect the heating process.
Why did your homemade blackcurrant cordial start bubbling?
The bubbling in your homemade blackcurrant cordial could be due to the fermentation process, where yeast consumes sugars and produces carbon dioxide. This can happen if the cordial was exposed to air for too long or if there was some wild yeast present in the ingredients. It's best to discard the cordial if it has started to ferment.
Why does chicken soup bubble in refrigerator?
If the chicken soup is bubbling, it is fermenting or growing gas-forming bacteria. You have either kept it too long, did not cook it properly to begin with, cooled it improperly or contaminated it.
How long do you bake just a pie crus?
Between 15 to 25 minutes is ideal for just a pie crust. You may need to weigh it down and poke holes in it to prevent the crust from bubbling up.
What happens when carbon dioxide gas is passed through calcium hydroxide solution?
When carbon dioxide gas is passed/bubbled through aqueous calcium hydroxide (also known as 'limewater'), a white precipitate will be formed. This means that the solution will turn cloudy/milky due to the formation of that white precipitate.Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)The precipitate, calcium carbonate, is only sparingly soluble in water. It will exist as a suspension in the resulting solution.But when excess carbon dioxide is added, this reaction takes place instead:CaCO3(s) + H2O(l) + CO2(g) → Ca(HCO3)2(aq)The calcium carbonate undergoes further reaction with water and carbon dioxide to form calcium bicarbonate (or calcium hydrogen carbonate), which is soluble. Thus the precipitate appears to 'disappear' or 'dissolve'. Thus, a colourless solution is formed.----- Other answers -----Water is added to give calcium hydroxide, and carbon dioxide is passed through this solution to precipitate the desired calcium carbonate, referred to in the industry as precipitated calcium carbonate (PCC):if carbon dioxide is passed through it it will turn cloudy and if it is done for to long then it will turn colourless.
How long will it take to bake a dish at 250 instead of 275?
I would start with 1:45 and check it (is it bubbling? is the top browning? is it hot in the center?) If it has a top that can burn easily, cover with foil for first hour.
How long was the Nile in Egypt for?
It flowed through Egypt as long as it was there and it still flows through Egypt.
How long does a homemade lava lamp take to heat up?
It may take 30-60 minutes for the homemade lava lamp to heat up and start bubbling. This can vary depending on the temperature of the room and the specific ingredients used in the lamp.
How long should I wait between resin layers when working on a project?
It is generally recommended to wait 4-6 hours between resin layers when working on a project to allow the previous layer to partially cure and prevent bubbling or wrinkling.
