Answer to Question #163227 in Chemistry for Kelcie

Question

is Na2SO4 + Pb(NO3)> 2NaNO3 + PbSO4 redox

Answer 1

Solution:

Na₂SO₄ + Pb(NO₃)₂ → 2NaNO₃ + PbSO₄

This reaction is not a redox reaction, since the oxidation state of the elements does not change.

When a solution of lead (II) nitrate (Pb(NO₃)₂) and sodium sulfate (Na₂SO₄) are mixed, you observe that a precipitate (PbSO₄) is formed.

Na₂SO₄(aq) + Pb(NO₃)₂(aq) → 2NaNO₃(aq) + PbSO₄(s)

2Na⁺(aq) + SO₄^2-(aq) + Pb²⁺(aq) + 2NO₃^-(aq) → 2Na⁺(aq) + 2NO₃^-(aq) + PbSO₄(s)

The net ionic equation for this precipitation reaction is:

Pb²⁺(aq) + SO₄^2-(aq) → PbSO₄(s)