Consider the reaction represented by the following equation CaCI2 (aq) + H 2C2O 4(aq) ⇌…

Chemistry WAEC 1993

Consider the reaction represented by the following equation CaCI2 (aq) + H 2C2O 4(aq) ⇌ CaC 2O4(s) + 2HCI(aq). Which of the following would dissolve the precipitate of CaC 2O4 formed?

  • Stirring the mixture vigorously
  • Adding more calcium chloride solution
  • lncreasing the concentration of the ethanedioic acid
  • Adding concentrated hydrochloric acid checkmark
  • Adding some distilled water

The correct answer is: D

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