How can i calculate the solbilty of silver chloride?

[lioric]

Homework Statement

Ksp of silver chloride is 1.8x10^-10 mol²dm^-6 at RTP

a) calculate the solubility of silver chloride in gdm^-3 in
i) pure water
ii) in 0.1M silver nitrate solution

b)Is silver chloride more soluble in water of in a solution containing silver ions. Why?
c) Why is silver chloride more soluble in aquouse ammonia than in water?

Homework Equations

AgCl = Ag⁺ x Cl^-

The Attempt at a Solution

Ksp = [Ag⁺] x [Cl^-]
1.8x10^-10 = S x S

S= √1.8x10^-10

Which i find the solubility. How do i convert it to g dm^-3?

b)?
c)?

 

[Borek]

What units will your solubility be in?

Before answering b try to solve a ii. c refers to additional reaction that takes place in the ammonia solution.

 

[lioric]

mol/dm3

 

[Infrared]

Well, you know how many moles of AgCl dissolve in a liter of water. Just convert from moles of AgCl to grams of AgCl and realize that a liter is the same volume as a cubic decimeter.