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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Kitty Kat on October 10, 2004, 07:44:00 AM

Title: Net ionic equations
Post by: Kitty Kat on October 10, 2004, 07:44:00 AM

can some1 help me out with writing the net ionic equation for:
H2SO4(aq) + Cu(OH)2 --> 2H2O(l) + CuSO4(s)
(by the way, is that CuSO4 meant to be solid or aqueous?)

Title: Re:Net ionic equations
Post by: Donaldson Tan on October 10, 2004, 12:07:41 PM

I dont think solid copper(II) sulphate will be formed as it's water-soluble.

it should be
H₂SO₄ (aq) + Cu(OH)₂ (s) --> CuSO₄ (aq) + 2H₂O (l)

First, we must elimiate the common ions present on the left and right hand side, which is sulphate only. Hence the ionic equation is:

2H⁺(aq) + Cu(OH)₂(s) -> Cu²⁺(aq) + 2H₂O(l)

Title: Re:Net ionic equations
Post by: Kitty Kat on October 10, 2004, 06:50:46 PM

then is CuSO4 also aqueous in this equation?
H2SO4(aq) + CuCO3(aq) --> CuSO4(?) + CO2(g) + H2O(l)

Title: Re:Net ionic equations
Post by: Donaldson Tan on October 11, 2004, 01:37:24 PM

Yes, unless water is present in minute amount.