WAEC - Chemistry (1993 - No. 15)
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
Adding some distilled water