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Add an excess of potassium iodide to copper sulphate solution how much is excess?
The amount of excess potassium iodide depends on the stoichiometry of the reaction between potassium iodide and copper sulfate. One equivalent of potassium iodide is needed to react with one equivalent of copper sulfate. Excess potassium iodide would be any amount added beyond this stoichiometric ratio.
What is the composition of fehling's solution?
Fehling's solution is made up of two separate solutions: Fehling's A (copper sulfate solution) and Fehling's B (potassium sodium tartrate and sodium hydroxide solution). When combined in equal parts, these solutions are used to test for the presence of reducing sugars like glucose in a chemical sample.
What is the name CuCN?
Copper(I) cyanide is the chemical name for CuCN. It is a white solid with the formula CuCN.
Why does the color of copper sulphate change when an iron nail dipped in it?
When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour.Therefore, the blue colour of copper sulphate solution fades and green colour appears.
What happens on placing iron nails in a beaker containing Copper Sulphate?
when iron nails are kept in a beaker containing copper sulphate displacement reaction takes place.Iron is more reactive than copper so it displaces copper from the copper sulphate solution.Thus it becomes iron sulphate+copper
What happens when copper metal reacts with potassium cyanide?
Copper metal is less reactive than potassium so it will not react with potassium cyanide.
What happens when copper is added to copper sulphate?
Nothing
What happens when potassium iodide is mixed with copper sulphate?
In the laboratory, copper(I) Iodide is prepared by simply mixing an aqueous solutions of potassium iodide and a soluble copper(II) salt such copper sulphate. : :: Cu2+ + 2I− → CuI2 The CuI2 immediately decomposes to iodine and insoluble copper(I) iodide, releasing I2. : :: 2 CuI2 → 2 CuI + I2
What happens when you mix copper sulphate and iron together?
iron sulphate will be created
What happens when you mix copper sulphate with potassium Hexacyanoferrate?
When you mix copper sulfate with potassium hexacyanoferrate, it forms a complex compound known as copper(II) hexacyanoferrate(II) or Turnbull's blue. This compound is a deep blue precipitate that is insoluble in water.
What happens when copper 2 sulphate is decomposed?
Noob
What happens when iron nails are placed in copper sulphate solution.write word equations of the reactions involved?
When iron nails are placed in copper sulphate solution, a displacement reaction occurs where iron replaces copper in the solution to form iron sulphate and copper metal. The word equations for the reactions involved are: Iron (s) + Copper sulphate (aq) -> Iron sulphate (aq) + Copper (s)
What happens when steel wool is added to copper sulphate?
Copper is deposed on the steel wool.
What happens when lead is put into copper sulphate?
That was why i came here
What happens to copper sulphate when added to water?
When copper sulphate is added to water, it dissociates into copper ions (Cu2+) and sulphate ions (SO4 2-). This forms a blue-colored solution due to the presence of copper ions in the water.
What happens when iron nail are placed in copper sulphate solutions with word equation?
If iron nails are placed in a copper sulphate solution they turn green and rusted which means they become copper plated nails.I think the word equation is :iron + copper sulphate - copper + Iron sulphate.Iron displaces copper
What happens when copper is added to concentrated sulfuric acid and heated gently?
copper sulphate and hydrogen is released.
