An investigation of the reaction between marble chips and hydrochloric acid.
Marble chips and hydrochloric acid results.
These are reactions that transfer energy to the surroundings.
This reaction between marble chips calcium carbonate and hydrochloric acid is an exothermic reaction.
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.
The rate of this reaction can be changed by changing the size of the marble chips.
Marble chips calcium carbonate caco 3 react with hydrochloric acid hcl to produce carbon dioxide gas.
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.
We are going to put both reactants into a chonical flask and collect the gas that will be given off.
Secondly weight out 3 grams of marble chips for each concentration 3.
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.
As the marble chips react with the acid carbon dioxide is given off.
The experiment involves using hydrochloric acid acidic and marble chip alkali.
The variables that i shall be changing will be the concentration of hydrochloric acid and water.
This process is based on random particle movement.
Describe how you could investigate.
A tube to connect the conical flask to the measuring cylinder.
The higher the concentration of hydrochloric acid in the beaker the faster the reaction will take place.
A conical flask contains the marble chips hydrochloric acid and the water that will make the reaction.
Pour the acid into the conical flask and add the marble chips 5.
This is because there will be more hydrochloric acid particles to collide with the marble chip particles.
Investigating the rate of reaction between marble chips calcium carbonate and hydrochloric acid aim.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
First you measure out 25cm3 of hydrochloric acid 2.
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.
Label this line a.
With the equation caco3 2hcl cacl2 h2o co2 hypotheses a reaction occurs when particles collide.
A stand to hold up the measuring cylinder.
Using the apparatus shown the change in mass of carbon dioxide can be measure with time.
Therefore resulting in a quicker reaction.
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.
The energy is usually transferred as heat energy causing the reaction mixture and its surroundings to become hotter.
