Carbonates react with strong acids to give off carbon dioxide and water. Marble is calcium carbonate and thus behaves in the same way:
CaCO3 (s) + 2HCL (aq) CaCL2 (aq) + H2O (l) +CO2 (g)
In this experiment, I am going to see if temperature affects the reaction rate between marble chips and hydrochloric acid by timing the release of carbon dioxide in the reaction.
I predict the higher the temperature, the faster the reaction rate. This is due to the kinetic theory. The more heat that is given to matter, the faster the particles move. This happens in the acid, so the faster the particles move, the faster the reaction rate due to more collisions between the marble chips and the acid.
To help me plan out an adequate experiment and to find a suitable reading range, I will do a small preliminary experiment. Here is what apparatus I will use:
(Draw Apparatus)
I will wear goggles due to the fact that I am handling acid. I am going to take 3 readings in this......
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