An investigation of the reaction between marble chips and hydrochloric acid.
Marble chips and hydrochloric acid results.
With the equation caco3 2hcl cacl2 h2o co2 hypotheses a reaction occurs when particles collide.
The rate of this reaction can be changed by changing the size of the marble chips.
A stand to hold up the measuring cylinder.
You then fill a bowl with water along with a boiling tube and straight after attach the delivery tube at the end of the boiling tube 4.
Using the apparatus shown the change in mass of carbon dioxide can be measure with time.
The temperature increase can be detected using a thermometer.
Marble chips calcium carbonate caco 3 react with hydrochloric acid hcl to produce carbon dioxide gas.
2 marks 9 4 explain in terms of particles how and why the rate of reaction changes during the reaction of calcium carbonate with hydrochloric acid.
This will allow us to see which reaction is faster with different strenghts of hydrochloric acid and also lets us compare results and draw realistic conclusions.
First you measure out 25cm3 of hydrochloric acid 2.
A conical flask contains the marble chips hydrochloric acid and the water that will make the reaction.
As the marble chips react with the acid carbon dioxide is given off.
This process is based on random particle movement.
The variables that i shall be changing will be the concentration of hydrochloric acid and water.
The energy is usually transferred as heat energy causing the reaction mixture and its surroundings to become hotter.
Calcium chloride solution is also formed.
Secondly weight out 3 grams of marble chips for each concentration 3.
The experiment involves using hydrochloric acid acidic and marble chip alkali.
Marble chips and hydrochloric acid planning aim to find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid.
Pour the acid into the conical flask and add the marble chips 5.
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 minute.
Describe how you could investigate.
Label this line a.
Therefore resulting in a quicker reaction.
The higher the concentration of hydrochloric acid in the beaker the faster the reaction will take place.
A tube to connect the conical flask to the measuring cylinder.
These are reactions that transfer energy to the surroundings.
9 3 sketch a line on the grid in figure 10 to show the results you would expect if the experiment was repeated using 20 g of smaller marble chips.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
This is because there will be more hydrochloric acid particles to collide with the marble chip particles.
