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exhaled air contains water vapour, when water comes in contact with cobalt chloride paper, the blue paper turns pink.

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12y ago
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12y ago

beacause when it is placed on the plant the water in the leaf turnes the coblt chloride paper from blue to pink

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10y ago

because of the presence of water in the liquid

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Q: Why does cobalt chloride paper change from blue to pink when it is placed on a leaf or a plant?
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What color will a cobalt chloride paper turn into when there is water vapor?

The colour of cobalt chloride paper is BLUE when NO WATER is present.When WATER is present it is PINK.


What is detected when cobalt chloride paper turns pink?

When cobalt II chloride paper turns pink, this means that it has detected water. :-)


What is cobalt chloride paper and what it is used for?

Cobalt chloride paper is used to study rate of transpiration through the upper and lower surface of leaf.The upper surface of leaf has less number of stomata so more time will be taken to change from blue to pink by cobalt chloride paper; while the lower surface of leaf has more number of stomata so less time will be taken to change from blue to pink by cobalt chloride paper. This is because the fact that the transpiration rate is higher when stomata are more in number and vice versa.


What would turn cobalt chloride paper yellow?

If cobalt chloride paper turns yellow, that just means it your salt contains a transition metal.


What is cobalt chloride paper in simple terms?

Cobalt chloride paper is absorbent paper which has been soaked in cobalt chloride solution and allowed to dry. It is a convenient way to use cobalt chloride as a test for the presence of water. When cobalt chloride is anhydrous, that is completely without water, it is blue, but when there is water present, either in solution or in the solid, it is pink. To use cobalt chloride paper it is heated to drive off the water present, until it turns blue. You then dip it into the liquid you want to test. Water,or any liquid such as milk which contains water, will turn the paper pink (it may look white if there's not much cobalt chloride on it). Other liquids, e.g. gasoline, will have no effect.


Is cobalt chloride paper the same thing as pH paper?

No. Cobalt chloride paper is used for testing the appearance of wate. Whilst pH paper is used for testing the pH value of a particular chemical/solution.


How can you detect presence of water vapour?

By using cobalt chloride paper. The acidity of the water would change the color of the paper due to the Ph balance.


How can you detect the presence of water vapour?

By using cobalt chloride paper. The acidity of the water would change the color of the paper due to the Ph balance.


What would happen if you breathe out on cobalt chloride paper?

Shiizzz


What is the color of dry cobalt chloride paper?

mostly blue.


Where can you purchase Cobalt Chloride paper in Australia?

in the movie it is real but..... it is not real


Why does the cobalt chloride test paper turn pink when wet?

pink