An investigation of the reaction between marble chips and hydrochloric acid.
Marble and hcl experiment.
Plot the results on the same graph.
Drop a small amount of dilute hydrochloric acid on an area of your sample that has been scratched by a nail.
When calcium carbonate is added to hydrochloric acid a reaction takes place.
Using the apparatus shown the change in mass of carbon dioxide can be measure with time.
Calcium chloride solution is also formed.
The different concentrations of diluted water mixed with hydrochloric acid.
Hydrochloric acid to react with the marble chips independent variable marble chips to react with the acid dependent variable stopwatch to accurately time the experiment spatula to handle the marble chips measuring cylinder to precisely measure out different concentrations of hydryochloric acid electric balance to measure the mass g of the marble chips bung.
The time it takes for the marble chips to dissolve.
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.
Marble reaction with hydrochloric acid.
A strong effervescence can be observed.
10cm3 of hydrochloric acid and 40cm3 of water 20cm3 of hydrochloric acid and 30cm3 of water 30cm3 of hydrochloric acid and 20cm3 of water 40cm3 of hydrochloric acid and 10cm3 of water and 50cm3 of just hydrochloric acid.
To ensure it is a fair test.
Compare the slopes of the two graphs.
Powdered marble reacts with hydrochloric acid to release bubbles of carbon dioxide gas.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
Calcium carbonate is dissolved by hydrochloric acid thereby forming gaseous carbon dioxide.
Investigating the rate of reaction between marble chips calcium carbonate and hydrochloric acid aim.
Click each image to see positive and negative results of the acid test.
I shall use quite a lot of apparatus for this experiment i shall need.
I will add calcium carbonate marble chips to hydrochloric acid.
The rate of this reaction can be changed by changing the size of the marble chips.
The mass of the marble chips in each test tube.
The volume of the hydrochloric acid will need to stay the same.
Pieces of marble are thrown into hydro chloric acid.
Repeat the experiment with 20g of the same marble chip size and 20cm 3 of the acid made up to 40 using distilled water.
The reaction using a higher concentration of hydrochloric acid is faster.