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Pure copper(II) sulfate is white. It is also known as anhydrous copper(II) sulfate because it has no water in it. When water is present in a sample of copper(II) sulfate it turns blue.
5 Αυγ 2024 · Water can be identified using a chemical test and/or a physical test; Chemical test for water. Anhydrous copper(II) sulfate turns from white to blue on the addition of water; The equation is: CuSO 4 (s) + 5H 2 O (l) → CuSO 4.5H 2 O (s) Copper sulfate turns a light blue colour in the presence of water. Physical test for water
10 Οκτ 2024 · Chemical tests for water. The presence of water is commonly tested for using anhydrous cobalt(II) chloride or anhydrous copper(II) sulfate. Cobalt(II) chloride. Anhydrous cobalt(II) chloride, CoCl 2, is blue. Hydrated cobalt(II) chloride, CoCl 2 •6H 2 O is pink. So, anhydrous cobalt(II) chloride can be used to test for water. This test is ...
Describe a chemical test for water. One test to identify water is to pour the substance being tested to anhydrous copper(II)sulfate. Anhydrous means there is no water in the compound.
There are several methods for testing for water, including physical tests, such as checking for condensation, and chemical tests, such as using litmus paper or anhydrous copper(II) sulfate. The choice of method will depend on the type and concentration of water in the sample being tested.
The test for water requires a chemical compound: Copper sulfate anhydrous. This is a white powder.Comment: The term anhydrous is formed of "an" (privative prefix) and "hydrous" meaning "water": "anhydrous" is therefore almost synonymous with dehydrated.
Testing for water. This page looks at two common tests for the presence of water - anhydrous copper(II) sulfate and cobalt chloride paper. Testing using anhydrous copper(II) sulfate. What is anhydrous copper(II) sulfate? The familiar blue copper(II) sulfate crystals contain molecules of water bound into the crystal structure.
