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To find if changing the concentration of an acid will increase or decrease the rate of the reaction when limestone is dissolved in nitric acid.
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Planning Aim - To find if changing the concentration of an acid will increase or decrease the rate of the reaction when limestone is dissolved in nitric acid. Equation - Calcium + Nitric ? Calcium + Carbon + Water Carbonate Acid Nitrate Dioxide CaCO3 + 2HNO3 ? Ca (NO3) + CO2 + H2O In order to make this a fair investigation the following variables be kept constant: * Temperature: This variable changes the rate of reaction, when the temperature is increased the rate of reaction is quicker, because the particles have more energy to move around and collide with each other. The more collisions between particles in a given off, the faster the rate of reaction. * Concentration: There will be a concentration of acid and a concentration of water as well. This variable changes the rate of reaction, by adding more acid in concentration than the water then the reaction will take place quicker because there...
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