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CO2 reacts with lime water Ca(OH)2 to give CaCO3 which is milky but on continuously passing CO2, Ca(HCO3)2 is formed and its soluble. Thus, the solution turns colourless.
Ca2+ + 2 OH- + CO2,gas --> CaCO3,precip. + H2O
On further addition of carbon dioxide it clears up again:
CaCO3,precip. + H2O + CO2,gas --> Ca2+ + 2HCO3- , which both are soluble ions.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoBecause the CO2 in the air reacts with the Calcium Hydroxide and forms Calcium Carbonate, which is insoluble in water and the suspended particles give the milky appearance.
Note that this reaction only occurs when the air contains CO2 - so you will get a much larger effect by blowing air from your lunfs into the solution than you will from blowing atmospheric air through it.
Wiki User
∙ 12y agolime water is slightly milky due to presence of traces of ca(oh)2 in it.
cao+co2=======>ca(oh)2
Wiki User
∙ 11y agoduu to the presence of excess calcium hydroxide that remains as a suspension
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When co2 is passed through lime water?
The lime water turns milky.
What 2 solutions can be used to test for carbon dioxide?
lime water turns milky in the presence of CO2 Limewater (a solution of Calcium hydroxide) - when carbon dioxide is blown through the solution, a precipitate of Calcium carbonate is produced. The solution is said to turn "milky" or "cloudy". Bromothymol blue (pH range 2.4 to 4.6) (red in colour) is added to distilled water, which turns it yellow. Carbon dioxide turns the resulting yellow solution green.
When carbon dioxide is passed though lime water is turns milky due to the formation fill in the blank?
Turns milky due to the formation of calcium bicarbonate. That is insoluble in water & look milky.
What is the standard test for CO2?
Get a test tube filled with lime water, then breathe into the test tube and if the lime water turns a milky white colour then there is carbon dioxide present!
What is the effect carbon dioxide in lime water?
Lime water turns milky when carbon dioxide is added to it.Lime water also turns into Calcium carbonate (Limestone) solution
When co2 is passed through lime water?
The lime water turns milky.
How do you perform the lime water test?
Lime water turns milky when CO2 (carbon dioxide) is passed through it. So to test if a given liquid is lime water, pass CO2 through it, if it turns milky, then it is limewater. You can reverse this chemical reaction by putting vinegar in it.
What happens when carbon di oxide passes through lime water?
Carbon dioxide turns lime water milky.
What 2 solutions can be used to test for carbon dioxide?
lime water turns milky in the presence of CO2 Limewater (a solution of Calcium hydroxide) - when carbon dioxide is blown through the solution, a precipitate of Calcium carbonate is produced. The solution is said to turn "milky" or "cloudy". Bromothymol blue (pH range 2.4 to 4.6) (red in colour) is added to distilled water, which turns it yellow. Carbon dioxide turns the resulting yellow solution green.
When carbon dioxide is passed though lime water is turns milky due to the formation fill in the blank?
Turns milky due to the formation of calcium bicarbonate. That is insoluble in water & look milky.
Lime water turns milky in the presence of?
limewater turns milky because when co2 reacts with it the particles make it luk cloudy and milky........... ********************************* And you could add that the cloudy appearance is due to the formation of CaCO3, which is insoluble in water.
What turns milky when carbon dioxide is present?
lime water
How do you test if the liquid is lime water?
Lime water turns milky when CO2 (carbon dioxide) is passed thru it. So to test if a given liquid is lime water, then pass CO2 thru it, if it turns milky, d liquid is lime water...
What is the standard test for CO2?
Get a test tube filled with lime water, then breathe into the test tube and if the lime water turns a milky white colour then there is carbon dioxide present!
Would a blown lower intake gasket create milky oil?
yes it can water can leak into the intake valley and get into your oil resulting in milky oil
What is the effect carbon dioxide in lime water?
Lime water turns milky when carbon dioxide is added to it.Lime water also turns into Calcium carbonate (Limestone) solution
When testing for carbon dioxide the liquid should turn?
Water turns milky.
