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Marble Chips Coursework

Essay about Rate of Reaction Between Marble Chips and Hydrochloric Acid

4518 Words19 Pages

Rate of Reaction Between Marble Chips and Hydrochloric Acid

To investigate the factors which affect the rate of reaction between marble chips and hydrochloric acid, with one in specific detail. Scientific knowledge:

Marble chips erode when they are exposed to acid rain or pollution.
Erosion is evident when you look at older marble buildings as in certain cases the erosion take a long time. It is more likely to occur in areas, where there is more pollution. This is because there are a greater number of industries in city than in the countryside.
Especially the higher amount of cars which release carbon dioxide, formed as a waste gas in reactions such as internal combustion.
Carbonic acid (the product of carbon dioxide…show more content…

If each collision requires less energy, then more collisions can take place in a shorter period of time. They also provide a surface for the molecule to attach to, increasing the probability of particles bumping into each other. However, each different reaction needs a unique catalyst.

Surface of a catalyst

Temperatures:

Increasing the temperature gives the particles more energy, resulting in faster moving particles and, consequently, more collisions and an increased rate of reaction.

When the reactants are heated, the rate generally increases. When the reactants are cooled, the reaction generally goes slower. According to the collision theory, particles must collide in order to react. Heat gives the particles more energy to move around and so they increase their speed. This increases the chances of a collision, and more importantly a successful one, as they are hitting each other with greater force with increased energy. On the other hand, cooling has the opposite effects and the chances of successful collisions are reduced. Cold Hot

Surface Area:

A smaller piece within a large surface area means more areas of contact, resulting in an increased number of collisions and, so, an increased reaction rate.

When the surface area of the solid reactant is increased, i.e. the reactant is powdered, the rate of the reaction will also increase.
This is because there are more particles exposed for the particles of the other reactant,

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Essay about The Reaction Between Marble Chips and Hydrochloric Acid

808 Words4 Pages

Using the syringe method I am going to investigate the reaction between
Marble chips and hydrochloric acid by measuring the volume of carbon dioxide formed. Chemistry

Using the syringe method I am going to investigate the reaction between Marble chips and hydrochloric acid by measuring the volume of carbon dioxide formed. This reaction rate will tell me how fast or slow a chemical reaction is and there are four things that could affect this greatly they are-

* Concentration-An increase in concentration means there are more particles. More particles mean that there will be more collisions.

* Surface area-When one of the reactants is solid; the reaction can only take place at the surface of the solid. Breaking the…show more content…

Using the collision theory I predict that the more concentrated the acid, the more collisions so the quicker and more violent the reaction will be.

To make this experiment a fair test I will make sure that the marble chips will be of the same size, amount and mass. I want to make sure that the marble chips are as similar as possible throughout the experiment and hopefully the results will be in direct relationship to each other. I will make sure that I use the same conical flask and syringe throughout each experiment because if I used different ones there is a chance they may not be clean and this will make the experiment unfair.

Each run will have to be done at the same time, non-stop or else the temperature could effect the results in which I would end up with inaccurate results. I will take readings at the same intervals throughout the experiment i.e. every thirty seconds. If these varied I would expect my results to be inaccurate.

Safety- Great care should be taken in any experiment and the experiment should be undertaken in a sensible manner. I will wear safety goggles throughout the experiment to prevent any acid from going into my eyes. I will also wear and overall to stop anything from spilling on to my

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