Add 0.4 g of calcium carbonate to the flask. Limestone (white stone or calcium carbonate) is used in pit latrines (or long drops). When hydrochloric acid reacts with any carbonates/hydrogen carbonates the products formed are metal chloride , water and carbon dioxide.Since HCl decomposes salts of weaker acids. Caco,(8) + 2 HCl(aq) CaCl, (aq) + H2O(l) + CO2(8) How many grams of calcium chloride will be produced when 26.0 g of calcium carbonate is combined with 15.0 g of hydrochloric acid? Ca(s) + HCl(aq) -> CaCl2(aq) + H2(g) When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. The student had added the exact amount of calcium required to react with the hydrochloric acid used. mass of CaCl, Which reactant is in excess? … 3 Rates of Reaction. Table 3. The student was suprised that the extra calcium still reacted. Observations Of Calcium Carbonate – CaCO3 Carbonate Before Adding HCl (aq) Hydrochloric Acid Solution Product After Drying Appearance Of CaCO3 Masses (g) Appearance Of HCl (aq) Solution Observations While Adding HCl (aq) Appearance Of Product Masses (g) Calcium Carbonate Is A White, Clumpy Powder. Background Knowledge: I know from my knowledge of science, that by adding together a carbonate and an acid, that a salt, water and Carbon Dioxide are produced. Using a measuring cylinder, add 50 cm 3 of dilute hydrochloric acid to a conical flask. (i) Write an equation for the reaction between hydrochloric acid and calcium carbonate. The rate of a reaction may be measured by following the loss of a reactant, or the formation of a product.. State one similarity and one difference in the observations you could make. They are. This can also speed up the reaction between calcium carbonate and hydrochloric acid with a higher temperature as a higher temperature can let the particles to have a higher kinetic energy for more effective collisions to have a higher rate of reaction. There are three reactions which may be studied to show how the rate can be changed.. Acids in the stomach (e.g. (ii) Determine the volume of 1.50 mol/dm–3 hydrochloric acid that would react with exactly 1.25 g of calcium carbonate. Question: Calcium Carbonate. Biological uses. Investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid at different concentrations Aim: To Investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid at different concentrations. 1) The reaction between calcium carbonate and dilute hydrochloric acid. After carrying out the experiment the student accidentally added more calcium. Include an equation in your answer. hydrochloric acid) play an important role in helping to digest food. Explain this observation. The limestone is a base that helps to neutralise the acidic waste. Measuring the Rate.. Immediately connect the gas syringe and start a stop clock.