Why is dilute sulphuric acid used in place of concentrated sulphuric acid to prepare copper sulphate?

Open in App

Solution

n this experiment an insoluble metal oxide is reacted with a dilute acid to form a soluble salt. Copper(II) oxide, a black solid, and colourless dilute sulfuric acid react to produce copper(II) sulfate, giving a characteristic blue colour to the solution. From this solution, blue copper(II) sulfate pentahydrate crystals can be obtained.
dilute surfuric acid is used because the reactioln occurs in water and not sulfuric acid thus amount of sulfuric acid should be lower than water.

Suggest Corrections

Similar questions

Write the balanced chemical equations for the following conversions:
(a) Lead sulphate from lead nitrate solution and dilute sulphuric acid.
(b) Copper sulphate from copper and concentrated sulphuric acid
(c) Ammonium sulphate from ammonia and dilute sulphuric acid.

Q. Why is dilute sulphuric acid added during crystallization of copper sulphate?

Q. While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring. Explain why ?

Q. Given balanced chemical equations to prepare the following salts:
Sodium sulphate using dilute sulphuric acid.

Q. why is dilute sulphuric acid added copper sulphate solution instead of common salt

Join BYJU'S Learning Program