Solubility rules Flashcards

1
Q

Always soluble

A
  • Group 1 metals
  • NH4+
  • NO3-
  • ClO3-
  • C2H3O2-
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2
Q

Mostly soluble

A
  • Halides
  • Except heavy metals
    • Pb, Hg, Ag
  • Sulfates SO4-2 except with heavy metal or group II metal
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3
Q

Mostly insoluble

A
  • OH-
  • Sulfides (S-2)
  • Except: golden rule, group II metals
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4
Q

Almost always insoluble

A
  • PO4-3
  • CO3-2
  • CrO4-2
  • O-2
  • Exceptions: golden rule
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