The reaction using a higher concentration of hydrochloric acid is faster.
Marble and hcl experiment.
When calcium carbonate is added to hydrochloric acid a reaction takes place.
The different concentrations of diluted water mixed with hydrochloric acid.
We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid.
The volume of the hydrochloric acid will need to stay the same.
The rate of this reaction can be changed by changing the size of the marble chips.
I will add calcium carbonate marble chips to hydrochloric acid.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
Powdered marble reacts with hydrochloric acid to release bubbles of carbon dioxide gas.
I shall use quite a lot of apparatus for this experiment i shall need.
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.
An investigation of the reaction between marble chips and hydrochloric acid.
Marble reaction with hydrochloric acid.
Marble chips calcium carbonate caco 3 react with hydrochloric acid hcl to produce carbon dioxide gas.
Click each image to see positive and negative results of the acid test.
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.
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.
Calcium carbonate is dissolved by hydrochloric acid thereby forming gaseous carbon dioxide.
Compare the slopes of the two graphs.
Drop a small amount of dilute hydrochloric acid on an area of your sample that has been scratched by a nail.
Investigating the rate of reaction between marble chips calcium carbonate and hydrochloric acid aim.
The mass of the marble chips in each test tube.
Plot the results on the same graph.
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.
Using the apparatus shown the change in mass of carbon dioxide can be measure with time.
A strong effervescence can be observed.
To ensure it is a fair test.
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