Question

Aqueous solutions of silver nitrate (AgNO3) and iron(III) chloride (FeCl3) are mixed together. Which ion combines with the chloride ion to form a precipitate?
Ag +( aq)

NO3 –( aq)

Fe 3+( aq)

Answer 1

Hello there!

The correct answer is Ag⁺.

If we look at the solubility rules, it says that most chlorides are soluble, except with Ag⁺, and Pb²⁺.

I hope this helps!
Brady

Answer 2

Answer: Ag +( aq)

Explanation:

$3AgNO_3(aq)+FeCl_3(aq)\rightarrow 3AgCl(s)+Fe(NO_3)_3(aq)$

This is an example of double displacement reaction in which exchange of ions take place. Positively charged $Ag^+$ combines with negatively charged $Cl^-$ ions  to form $AgCl$ which is insoluble in water, thus forms a precipitate.

Positively charged $Fe^{3+}$ combines with  negatively charged $NO_3^-$ ions to produce $Fe(NO_3)_3$ which dissolves in water.