nvestigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid
Investigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid
Planning
I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and acid.
Introduction
I am investigating how the rate of reaction between marble chips and hydrochloric acid is altered when the concentration is changed. This is the word equation for my investigation,
Calcium + Hydrochloric Calcium + Carbon + Water
[IMAGE]Carbonate Acid Chloride Dioxide
The symbol equation for my investigation is,
[IMAGE]CaCo3 + 2HCL CaCL2 + CO2+ H2O
Prediction
I predict that when I have a higher concentration I will have a faster rate of reaction. Referring to Edexcel Science Revision Guide edited by Mary James, the collision theory states that when there are more particles, there are more collisions making the reaction faster (see diagram). Also referring to Chemistry For You by Laurie Ryan, it states "As you increase the concentration of the acid, there are more acid particles in the same volume. Therefore there is a greater chance of acid particles colliding, and reacting with more particles on the surface of the marble." So, this means that the higher the concentration of my acid the faster the reaction.
Method
I will weigh out one gram of marble chips using a balance and put it in a conical flask and add to it a concentration of 50cm3 using water and hydrochloric acid. I shall start by filling up a measuring cylinder with water and putting it in a water bath so I can record how much gas has been given off. I shall then put my one gram of marble chips measured using in a conical flask then add to that my concentration of hydrochloric acid and water, put on the bung and start the stop clock. I shall record how long it takes for 25cm3 of gas to be collected.
The reason I
Planning
I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and acid.
Introduction
I am investigating how the rate of reaction between marble chips and hydrochloric acid is altered when the concentration is changed. This is the word equation for my investigation,
Calcium + Hydrochloric Calcium + Carbon + Water
[IMAGE]Carbonate Acid Chloride Dioxide
The symbol equation for my investigation is,
[IMAGE]CaCo3 + 2HCL CaCL2 + CO2+ H2O
Prediction
I predict that when I have a higher concentration I will have a faster rate of reaction. Referring to Edexcel Science Revision Guide edited by Mary James, the collision theory states that when there are more particles, there are more collisions making the reaction faster (see diagram). Also referring to Chemistry For You by Laurie Ryan, it states "As you increase the concentration of the acid, there are more acid particles in the same volume. Therefore there is a greater chance of acid particles colliding, and reacting with more particles on the surface of the marble." So, this means that the higher the concentration of my acid the faster the reaction.
Method
I will weigh out one gram of marble chips using a balance and put it in a conical flask and add to it a concentration of 50cm3 using water and hydrochloric acid. I shall start by filling up a measuring cylinder with water and putting it in a water bath so I can record how much gas has been given off. I shall then put my one gram of marble chips measured using in a conical flask then add to that my concentration of hydrochloric acid and water, put on the bung and start the stop clock. I shall record how long it takes for 25cm3 of gas to be collected.
The reason I