Geologists can use dilute hydrochloric acid to help identify the cementing agent of sandstones.
Marble reacting with hydrochloric acid.
Pieces of marble are thrown into hydro chloric acid.
Stone surface material may be lost all over or only in spots that are more reactive.
When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves.
In exposed areas of buildings and statues we see roughened surfaces removal of material and loss of carved details.
The combined reactants have a higher chemical potential than the combined products i e.
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 to stop the gas from escaping weighing boat to hold the marble chips in when weighing variables.
Calcium carbonate is dissolved by hydrochloric acid thereby forming gaseous carbon dioxide.
Conical flask to hold the hydrochloric acid and marble chips boiling tube to hold and indicate whether or not carbon dioxide has been formed delivery tube to allow the gases to be passed through bowl of water to contain the water 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.
If the acid fizzes on your sample your rock is probably marble.
The reaction takes place spontaneously.
Describe how you could investigate.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
Pieces of marble are thrown into hydro chloric acid.
Marble is a limestone or a dolostone that has been metamorphosed.
It will have an acid reaction that is similar to the limestone or dolostone from which it was formed.
Other applications of the acid test.
The rate of this reaction can be changed by changing the size of the marble chips.