Hydrochloric Acid And Marble Chips Term paper

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Marble Chips / Hydrochloric Acid
Rates of Reaction: Marble Chips and Hydrochloric Acid Rates of Reaction PLANNING AIM    To find if changing the concentration of an acid will increase or decrease the rate of ...
Aim

The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) takes place. There are many variables that effect the rate of this reaction such as the following:

1. Temperature
2. Concentration (Pressure for gases)
3. Catalyst
4. Surface area

In my investigation I will be testing how changing the concentration of the Hydrochloric acid makes an effect and changes the

Marble Chips and Hydrochloric Acid
PLANNING AIM    To find if changing changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid. With the ...
speed of the reaction. I will do various experiments and then evaluate the results and come to a conclusion.

The reaction that will take place is

Hydrochloric acid + Calcium Carbonate
Calcium Chloride + Water + Carbon dioxide

Hypothesis

The more concentrated the acid then the quicker the reaction will take place, because there will be more HCl particles

The effect of temperature on the reaction rate between marble chips and hydrochloric acid
Carbonates react with strong acids to give off carbon dioxide and water. Marble is calcium carbonate and thus behaves in the same way: CaCO3 (s) + 2HCL (aq) &#61614 ...
than water particles for the marble chips to collide with and therefore react. More collisions between the two reactants (HCl and CaCO ) will take place resulting in a quicker time for the reaction.

If the temperature at which the reaction takes place is increased then the reaction will be faster because the particles will have more energy and therefore collide more often.

The increase in surface area will result in a faster reaction. If the marble chips are

Investigating the relationship between the concentration and the rate of Carbon dioxide production w
nded because I could have used other acid to see Introduction: In this investigation my aim is to demonstrate of how changing the concentration of hydrochloric acid affects the amount ...
powdered then the reaction will happen faster because more of the chip will be exposed to the acid and they will react quickly

Prediction

I predict that if the concentration of the HCl is doubled then the experiment will happen twice as fast. This is because twice as many HCl particles will be present than previously and there will be twice as much chance of the calcium carbonate chips colliding with the concentrated hydrochloric acid. Therefor when the concentration is

HCL Vs Calcium Carbonate
Scientific Knowledge There are many different factors that can effect the rate of a reaction, some of these are as follows: Temperature- The higher the temperature the more energy each ...
double the time take for the reaction should be halved.

When the surface area of the calcium carbonate chips is doubled there will be twice as much chance of it colliding with the Hydrochloric acid. Therefore I predict that when the surface area is doubled, the time taken for the experiment is halved.

A temperature increase of 10 C will see the time taken for the experiment halved because energy of collisions in the particles increases, this means that

Marble Chips and HCL
Aim The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) ...
there are going to be more successful collisions.

Introduction

Collision theory - Collisions between reactant particles are needed for the reaction to take place in order to form a product. Some collisions are successful and give a product while others don't because particles don't have enough energy.

Activation energy - The amount of energy needed for the reaction to be started. If there is enough energy then the reaction takes place and a product is formed, but if there isn't

resistance
Investigating the Rate of Reaction Between Marble Chips ...
enough then no reaction takes place.

There are two possibilities for increasing the rate of reaction:

1. The activation energy is reduced so that there is a better chance of particles having enough energy to react. Reactants will need less energy to react.

2. The number and strength of collisions is increased so that the reaction can
happen faster. If the particles have more energy then more particles will be able to react.

Solid reactants like marble chips are

Reactions between HCL and Marble chips
Planning I have decided to investigate the effect of different concentrations of hydrochloric acid on marble chips. I want to see how long it takes for 30cm of ...
effected by surface area, the larger the surface area the more collisions that will take place. This will increase the rate of reaction and decrease the time taken.


Liquid/ Aqueous reactants rely on collisions for more collisions to take place. In a concentrated acid solution there are more acid particles so more collisions will take place. There will be an increase in the product formed in a certain time.


When the temperature is increased, the particles will have

Rate Of Reaction : HCL and Marble Chips
Introduction This chemistry investigation was performed to investigate the rate of reaction between Marble Chips (Calcium Carbonate - CaCl ) and Hydrochloric Acid (HCL). In this investigation I want ...
more energy, so they will move faster. This will result in the particles colliding more frequently and increasing the speed of the reaction. Also when they have more energy there will be more chance of the collisions being successful because the activation energy will be attainable.

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