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An Investigation of the Reaction between Calcium Carbonate

And Dilute Hydrochloric acid.

Experiment 1

Introduction:

The purpose of this report is to produce carbon dioxide gas by reacting calcium carbonate and hydrochloric acid together. Calcium chloride solution is also formed:

CaCO3 + 2HCL CaCl2 + H2O + CO2

There are four reasons that can change the rate of reaction, these are:

Concentration: An increase in concentration means there are more particles. More particles mean that there will be more collisions.

Surface area: When one of the reactants is solid; the reaction can only take place at the surface of the solid. Breaking the solid into smaller pieces will increase the surface area exposed to the other reactant.

Temperature: Since temperature is a measure of the motion of particles, increasing temperature will cause the particles to move faster, more collisions occur and the collisions are more violent. This should increase the rate of reaction.

Catalysts: Catalysts are substances that change the rate of a chemical reaction without being changed in the reaction. Catalysts are most often used to speed up the chemical reaction.

Equipment for the experiment:

Apparatus

Chemical Flask

Cotton Wool

Measuring Cylinder

A Tea Spoon

Calcium Carbonate

Dilute Hydrochloric Acid