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Why carbon dioxide when passed thorough lime water turns solution milky?
Wiki User
∙ 12y ago
CO2 reacts with lime water Ca(OH)2 to give CaCO3 which is milky. But on continuously passing through gaseous CO2 the soluble Ca(HCO3)2 is formed. Thus, the solution turns from milky to clear, colourless.
Ca2+(aq) + 2 OH-(aq) + CO2,gas --> CaCO3,precip. + H2O
On further addition of carbon dioxide it clears up again:
CaCO3,precip. + H2O(l) + CO2,gas --> Ca2+(aq) + 2HCO3-(aq) ,
which both are soluble ions.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoLime water is actually Ca(OH)2 . When it reacts with CO2 insoluble CaCO3 is formed which turns solution milky. When excess CO2 is added CaCO3 reacts with water and CO2 to form Calcium bicarbonate which is soluble. That is why the solution clears out.
Equations:
1) Ca(OH)2 + CO2 --------> CaCO3 + H2O
2) CaCO3 + CO2 + H2O ---------> Ca(HCO3)2
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Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
carbon dioxide is used during photosynthesis
What gas that passed through into an acidic dichromate solution and turn the solution from orange to green?
Sulphur Dioxide
How can carbon be passed from plants and animals to human beings?
when plants and animals respire, carbon is returned to the air as carbon dioxide, and humans then beathe in the same carbon dioxide that was placed into the air by the decomposed plants and animals.
How do identify carbon dioxide?
With a carbon dioxide detector, meter, or gauge. If oxygen levels and dangerously low and carbon dioxide dangerously high you will have trouble breathing. -written by a weirdo With a carbon dioxide detector, meter, or gauge. If oxygen levels and dangerously low and carbon dioxide dangerously high you will have trouble breathing. -written by a weirdo
What is the solution used to detect the presence of CO2?
Calcium hydroxide solution is used to detect the presence of carbon bi oxide. When carbon bi oxide is passed through the solution of calcium hydroxide, it turns milky white. There is formation of calcium carbonate particle. This is what was taught to me as a kid in my school.
Will the carbon dioxide turn colourless solution when the carbon dioxide is passed continuously into limewater?
yes it will.... anyone know why ??? :) no
Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
carbon dioxide is used during photosynthesis
What happen when carbon dioxide is passed to a solution of calcium oxide?
Calcium carbonate (CaCO3) is obtained.
What happens when carbon dioxide is passed through NaOH solution?
2 NaOH(aq) + CO2(g) = Na2CO3(aq) + H2O(l)
What is test for carbon dioxide gas gas?
When carbon dioxide is passed through lime water it goes cloudy.
What happens when conbon dioxide is passed through water?
When carbon dioxide is passed through lime water it will turn milky.
Name two waste products that have to be removed from the body?
The two main waste products of respiration are Water (H2O) and Carbon Dioxide (CO2).
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.
What is the spongelike organ in which oxygen and carbon dioxide are passed between?
Lungs.
What gas that passed through into an acidic dichromate solution and turn the solution from orange to green?
Sulphur Dioxide
What happens when carbon dioxide gas is passed through limes?
it turns milky
How can carbon be passed from plants and animals to human beings?
when plants and animals respire, carbon is returned to the air as carbon dioxide, and humans then beathe in the same carbon dioxide that was placed into the air by the decomposed plants and animals.
