Quiz 5

Table 1:Both versions dealt with nickel(II) carbonate NiCO₃(gfw=118.6g/mole).
• v1: s=gs*10/gfw=4.4*10^-4*10/118.7=3.7*10^-5=[cation]=[anion]
  Ksp=s²=(3.7*10^-5)²=1.4*10^-9
• v2: s=gs*10/gfw=6.6*10^-4*10/118.7=5.6*10^-5
  Ksp=s²=(5.6*10^-5)²=3.1*10^-9

Table 2Both versions dealt with TI(OH)₃(gfw=255.4g/mole)
• v1:Ksp=27s⁴; s=(Ksp/27)^1/4=(6.3*10^-46/27)^1/4=2.2*10^-12
  [cation]=s; anion=3s
  gs=s*gfw/10=2.2*10^-12*255.4/10=5.6*10^-11
• v2:Ksp=27s⁴; s=(Ksp/27)^1/4=(2.3*10^-44/27)^1/4=5.4*10^-12
  [cation]=s; anion=3s
  gs=s*gfw/10=5.4*10^-12*255.4/10=1.4*10^-10