REACTION BETWEEN MARBLE CHIPS AND HYDROCHLORIC ACID
Choose one of these experiments for your laboratory report:
a The effect of concentration OR a The effect of temperature for your laboratory report The rate of a particular chemical reaction (how much product is formed/reactant is consumed per unit time) depends on a number of factors: concentration of reactants, temperature, catalysts, pressure or degree of subdivision of reactant.’ When marble chips react with hydrochloric acid carbon dioxide is released. The gas that is released can be collected during the reaction and the rate of reaction determined.
In this experiment you will study the effect on the rate of this reaction of changes in the concentration or temperature of the hydrochloric acid.
Your laboratory report should be more than just a copy of the instructions together with any results you have obtained. They should form a record so that you, or any other person, could repeat the experiment taking note of your observations, results, and conclusions. Your laboratory report should include:
Introduction Background: You may find it helpful to ‘set the scene’ by introducing key theoretical ideas relevant to the practical or to link the experiment to significant examples in our everyday lives. Aims/objectives. (20 marks)
