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?

1 Answer
May 21, 2015

Answer:

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)"#.

Explanation:

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 .

More specifically, it is an acid-base neutralization reaction.

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)"#