Question

How many moles of moles of silver nitrate can be added to 100 mL of a 0.1 M aqueous sodium chloride solution before precipitation of a solid silver chloride occurs? (AgCl Ksp = 1.8x 10^-10 at 25 degrees Celsius)   

Answer 1

For AgCl Ag++ Cl- K of Aga 1.8 x10 10 Ksp-Ag.ja j 국 [Ag+1- Ksp. Suppose this is the maximum concentration to form the precipitate, For [Ag+] =-s-, AgCl will just start a precipitation If [Ag 1>, AgCl will precipitate Concentration of CI in the 100 mL solution is 0.1 M [CI] [Cr] K, C 1 +-K,-1.8×10-10 -1.8x10-9 M CI1 0.1 number of moles We know that Molarity → number of moles of Ag. molarity x Volume (in L ) 1.8x 109 M x 0.1 L-1.8 x 10-10 mol Number of moles of AgNumber of moles of AgNO 1.8x10 10 mol Volume (in L)