Answer to Question #116259 in General Chemistry for fanta

Question

For the closed system below:
Cu(s) + 2Ag+(aq) 2Ag(s) + Cu2+(aq)
How would you know if the system is at equilibrium?

A.
The mass of Cu(s) remains constant.
B.
[Ag(s)] = [Ag+]
C.
[Cu2+] = [Cu(s)]
D.
[Cu2+] = [Ag+]

Answer 1

A.

The mass of Cu (s) remains constant.

Because constant K(eq)=[Cu(s)][Ag²†]²/[Cu²†][Ag(s)]²