Question

You have lime scale(calcium carbonate (CaCO3)) on your faucets. Hydrochloric acid reacts with the mineral calcite (CaCO3) to produce carbon dioxide gas, water, and calcium chloride. Based on what you have learned in activity A and activity B, what are three things you could do to make the reaction occur more quickly to remove the lime scale on your faucet?

NOTE: you must attach your lab sheet to this question.

Answer 1

Step-by-step explanation:

To make the reaction between hydrochloric acid and calcium carbonate (lime scale) occur more quickly and effectively, here are three things you can do:

1Increase the concentration of hydrochloric acid: The rate of a chemical reaction generally increases with higher concentrations of reactants. By using a more concentrated hydrochloric acid solution, you provide a greater number of acid molecules that can react with the lime scale, thus speeding up the reaction.

2.Increase the temperature: Raising the temperature of the reaction mixture can accelerate the reaction rate. Higher temperatures provide more energy to the reactant particles, increasing their collision frequency and kinetic energy. As a result, more effective collisions occur between the hydrochloric acid and calcium carbonate, leading to faster lime scale removal.

3Increase the surface area of the lime scale: Breaking the lime scale into smaller pieces or increasing its surface area exposes more of the reactant to the hydrochloric acid, promoting faster reaction rates. You can achieve this by scrubbing the lime scale or using an abrasive material to physically break it up, allowing for more efficient contact between the acid and the lime scale.