Question

Observation when copper sulphate react with sodium carbonate solution

Answer 1

A precipitate, copper carbonate, will form. Equation:- CuSO4 + Na2CO3 —— -> CuCO3 + 2Na+ + SO42-

Answer 2

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What are the observations when copper sulphate reacts with sodium carbonate?

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3 ANSWERS



Thomas Jack, works at DECS

Answered Oct 12

A precipitate, copper carbonate, will form.

Equation:- CuSO4 + Na2CO3 ——-> CuCO3 + 2Na+ + SO42-

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Mike Jones, MA Chemistry & Physics, Western Carolina University (1975)

Answered Jan 15

Copper sulfate is a blue solid (it exists as the pentahydrate) and readily dissolves in water to make a blue solution containing Cu2+ ions and SO4^2- ions. Sodium carbonate is a white solid and dissolves in water to make Na+ ions and CO3^2- ions.

When combined, these two solutions will react to form an insoluble compound:
2CuSO4(aq) + 2Na2CO3(aq) + H2O(l) → Cu2CO3(OH)2(s) + CO2(g) + 2Na2SO4(aq)

You will observe the formation of a green insoluble solid, basic copper(II) carbonate. It is formed in the patina found on copper left out in the open, like copper roofs and gutters. It’s why the Statue of Liberty is green.


precipitate, copper carbonate, will form.

Equation:- CuSO4 + Na2CO3 ——-> CuCO3 + 2Na+ + SO42-

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