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When copper react with sodium hydroxide, copper hydroxide is one of the products which has a distinct colour, so...
1) Add a few drops of dilute sodium hydroxide to the solution you wish to test for copper ions
2) If a blue precipitate forms (copper hydroxide is insoluble in water), then it's likely that copper ions are present
3) To confirm the presence of copper ions, add ammonia solution & if the precipitate dissolves, forming a deep blue solution, you know copper ions are present
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∙ 10y ago
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∙ 15y agoMost chemists currently measure copper levels in zinc oxide..
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∙ 6y agoFirst you need to determine the concentration of copper in this water. Then report it to the volume of the sample.
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∙ 13y agohow can you tell if something is cooper
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How do you test the copper two ions?
A Flame Test. Using a platinum or nichrome wire. Clean the wire in hydrochloric acid, Then dip the wire into a solution containing copper(II) ions. e.g. copper sulphate solution. The pass the wire through a Bunsen burner flame. The flame should burn a green/blue colour.
What color is a copper compound when you burn it?
It depends on the compound. If the compound contains copper (I) ions, the flame is blue. If the compound contains copper (II) ions bonded to a halogen (F, Cl, I, Br, or At), the flame will be a blue-green color, and if the compound contains copper (II) ions and no halogens, the flame will be a deep green.Copper sulfate burns a light/sky blue colour.
What compound will be formed between copper ion and carbonate ion?
Copper and carbonate ions form copper carbonate. In practice, copper carbonate usually contains hydroxide ions as well.
What is the Function of cupric sulfate in benedict's solution?
These Copper(II) ions are reduced to insoluble Copper(I) ions, while the reaction.
What is the ratio of copper II ions to phosphate ions?
2:3
What color does copper nitrate burn in a flame test?
The colour of any sample containing copper ions burns with a bluish green flame in the flame test.
What elements are in copper carbide?
Copper carbide is a salt. As the element implies, the ions present are copper ions and carbide ions. Carbide ions are made of carbon atoms.
What ions are in copper phosphate?
There are three copper II ions (Cu2+) and two phosphate ions (PO43-).
How do you test the copper two ions?
A Flame Test. Using a platinum or nichrome wire. Clean the wire in hydrochloric acid, Then dip the wire into a solution containing copper(II) ions. e.g. copper sulphate solution. The pass the wire through a Bunsen burner flame. The flame should burn a green/blue colour.
What color would copper II nitrate burn?
Copper (II) Nitrate burns in a Green flame
What color is a copper compound when you burn it?
It depends on the compound. If the compound contains copper (I) ions, the flame is blue. If the compound contains copper (II) ions bonded to a halogen (F, Cl, I, Br, or At), the flame will be a blue-green color, and if the compound contains copper (II) ions and no halogens, the flame will be a deep green.Copper sulfate burns a light/sky blue colour.
What two ionic states can copper have?
Copper ions can have a +1 or +2 charge. They are represented by the following: Copper(I) ions are represented by the symbol Ca+ and Copper(II) are represented by the symbol Ca2+.
What compound will be formed between copper ion and carbonate ion?
Copper and carbonate ions form copper carbonate. In practice, copper carbonate usually contains hydroxide ions as well.
What will happen to the copper sulfate crystal in the test tube filled with distilled water for two hours?
Copper atoms will dissolve into the water, giving off electrons at the anode. At the cathode, the copper ions will be deposited on the electrode and acquire electrons.
What is the Function of cupric sulfate in benedict's solution?
These Copper(II) ions are reduced to insoluble Copper(I) ions, while the reaction.
What is the ratio of copper II ions to phosphate ions?
2:3
What happens in an ionic bond between copper and oxygen?
Copper atoms lose one or two electrons when forming an ionic bond with oxygen. The oxygen atoms gain the electrons released from the copper atoms when forming an ionic bond with copper. The electrostatic attraction between the positive and negative ions forms the ionic bond. Copper can form two different ions, copper(I) and copper(II). Copper(I) ions have a charge of 1+ (Cu+) and copper(II) ions have a charge of 2+ (Cu2+). Oxide ions have a charge of 2+ (O2-). Copper(I) oxide has a formula unit of Cu2O. Copper(II) oxide has a formula unit of CuO.
