Question

AgCl paling mudah larut dalam..
a. 0,1 M AgNO3
b. 2,0 M HCI
c. 2,0 BaCl2
d. 0,2 M NaCl
e. air murni
beserta caranya

Answer 1

AgCi paling mudah larut dalam 2,0 BaCI2(C)

Answer 2

AgCl ---> Ag⁺ + Cl⁻              
  s            s       s

a) AgNO₃ ---> Ag⁺ + NO₃⁻
     0,1 M       0,1 M

Ksp AgCl dalam AgNo₃ = [Ag⁺] + [Cl-]
1,8.10⁻¹⁰ =, 0,1.s
s = 1,8.10⁻⁹ M

b) HCl ---> H⁺ + Cl⁻
     2 M             2M

Ksp AgCl dalam HCl = [ Ag⁺] [Cl⁻]
1,8.10⁻¹⁰ = 2s
s = 9.10⁻¹¹ M

c) BaCl₂ ---> Ba²⁺ + 2Cl⁻
      2 M                   2s
  
Ksp AgCl dalam BaCl2 = [Ag⁺] [Cl⁻]²
1,8.10⁻10 = s.4²
s = 1,8.10⁻¹⁰/16
  = 1125.10⁻¹⁴ M

d) NaCl ---> Na⁺ + Cl⁻
     0,2 M             0.2 M

Ksp AgCl dalam NaOH = [Ag⁺] [Cl⁻]
1,8.10⁻¹⁰ = s. 0,2
s = 9.10⁻¹⁰ M

Mudah larut = memiliki nilai s yg terbesar 
jika dilarutkan dg AgNo₃