Advertisements
Advertisements
Question
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
Advertisements
Solution
When NH3 solution is added to CuSO4 solution drop by drop, ammonia ions completely react with copper sulphate and precipitates of copper hydroxide are formed.
CuSO4(aq) + 2NH3(aq) + 2H2O(I) → Cu(OH)2(s) + (NH4)2SO4(aq)
But when we add excess of ammonia, the precipitate dissolves and a soluble complex is formed.
CuSO4(aq) + 4NH3(aq) → [Cu(NH3)4]SO4(aq)
APPEARS IN
RELATED QUESTIONS
Name the gas evolved when the following mixtures are heated.
Sodium nitrite and ammonium chloride.
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
How will you prepare the following from nitric acid?
Lead nitrate
How will you prepare the following from nitric acid?
Aqua regia
Write the equations involved in Ostwald process.
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is the name of the catalyst?
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
What is the property of nitric acid which allows it to react with copper?
