What are the products of the reaction between silver and a solution of gold(I) nitrate? Between solutions of nitric acid and sodium hydrogen carbonate?

Question

8029 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-05-21T02:27:40

The products for the first reaction are $"Au(s)" + "AgNO"_3"(aq)"$ ; for the second reaction they are $"NaNO"_3"(aq)" + "H"_2"O(l)" + "CO"_2"(g)"$ .

Reaction 1

$"Ag(s)" + "AuNO"_3"(aq)" → "?"$

This reaction looks like a single displacement .

Since $"Ag"$ is above $"Au"$ in the activity series, the reaction will be

$"Ag(s)" + "AuNO"_3"(aq)" → "Au(s)" + "AgNO"_3"(aq)"$

Reaction 2

$"HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "?"$

This reaction looks like a double displacement .

It starts as

$"HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "H"_2"CO"_3"(aq)" + "NaNO"_3"(aq)"$

But the carbonic acid decomposes immediately to $"H"_2"O"$ and $"CO"_2$ .

$"H"_2"CO"_3"(aq)" → "H"_2"O(l)" + "CO"_2"(g)"$

The overall reaction is

$"HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "NaNO"_3"(aq)" + "H"_2"O(l)" + "CO"_2"(g)"$