I am going to find out how the surface area affects the rate of reaction by measuring the amount of gas produced and weight loss in a reaction between small/large pieces of Marble Chips (Calcium Carbonate) and Hydrochloric acid per every 30 seconds.

The first 200 words of this essay...

Investigation report coursework on (Rates of Reactions), Investigation held

By Bhavesh makwana

Rates of Reaction

Reaction of limestone/ calcium carbonate

And hydrochloric acid.

Aim.

In the investigation I am going to find out how the surface area affects the rate of reaction by measuring the amount of gas produced and weight loss in a reaction between small/large pieces of Marble Chips (Calcium Carbonate) and Hydrochloric acid per every 30 seconds.

Hypothesis.

The rate of reaction increases when the surface area of a solid reactant is increased. This happens because by increasing the surface area we are also increasing the rate of collisions between the particles. When there is more of the reactant to react with the reaction speeds up. Therefore, my hypothesis is: the reaction will be faster when using small chips, so the gas will be produced faster (the same amount of gas will be produced in all experiments).

Apparatus.

* Conical flask

* Rubber ring

* Water

* Boiling tube

* Hydrochloride acid

* Delivery tube

* Measuring cylinder (50ml)

* Stopwatch