Question

which two processes are involved in the preparation of copper sulphate from dilute sulphuric acid and an excess of copper oxide? explain.

Answer 1

Answer:

this experiment, students react an insoluble metal oxide with a dilute acid to form a soluble salt. By reacting copper(II) oxide, a black solid, with colourless dilute sulfuric acid, they produce copper(II) sulfate with a characteristic blue colour. Students can then obtain blue copper(II) sulfate pentahydrate crystals

Using the procedure below, it should take no more than 30 minutes to produce the filtered salt solution.

Experimental work can begin without delay if the dilute sulfuric acid and copper(II) oxide powder are provided in ready-measured quantities (see Health, safety and technical notes).

This procedure can be used by students. A demonstration aided by students may be more sensible if there are real doubts about safe behaviour or adequate manipulative skills.