Abstract This article selects lower concentrations of acids to compare the pH and its changing trends of calcium carbonate reacting with different acids, and analyze the reaction characteristics and teaching demonstrations from four perspectives: macro, micro, symbol, and curve by using the pH sensor. Through theoretical calculation and analysis, it has been confirmed that under certain conditions, whether it is calcium carbonate or marble, sulfuric acid will hinder the reaction and manifest after a period of time; However, when the acidity is below a certain level, sulfuric acid has no hindering effect on the reaction. Meanwhile, it will generate a considerable amount of carbon dioxide gas in the rapid reaction phase under the conditions of hindrance, which means it can be used in the laboratory to prepare a small amount of carbon dioxide gas.
ZHU Zhuang-Li. Experimental Study and Theoretical Analysis for the Reaction of Hydrochloric Acid or Sulfuric Acid with Calcium Carbonate[J]. Chinese Journal of Chemical Education, 2024, 45(21): 102-107.
