Marble In Dilute Hcl

10 gram of a piece of marble was put into excess of dilute hcl acid.

Marble in dilute hcl.

Pieces of marble are thrown into hydro chloric acid. Limestone is composed almost entirely of calcite and will produce a vigorous fizz with a drop of hydrochloric acid. Asked oct 28 2017 in class x science by priya12 12 631 points. With the help of balanced chemical equations for all the changes explain the observations.

The combined reactants have a higher chemical potential than the combined products i e. It will produce a very weak fizz when a drop of cold hydrochloric. What will happen if an excess of gas is passed through lime water. What change would be observed in lime water.

Marble is chemically calcium carbonate. The percentage of c a c o 3 in the marble is. The acid test on rocks. When dilute hcl is added to calcium carbonate it forms calcium chloride water and carbon dioxide.

Calcium carbonate is dissolved by hydrochloric acid thereby forming gaseous carbon dioxide. Marble reaction with hydrochloric acid drop a small amount of dilute hydrochloric acid on an area of your sample that has been scratched by a nail. Marble is found in various places around the world including india greece spain turkey egypt italy and the united states of america. The chemical equation for the reaction is as follows caco3 2hcl cacl2 h2o co2 carbon dioxide gas turns lime water milky due to the formation of calcium carbonate.

When you mix a strong acid like hcl with any carbonate you will have a chemical reaction in which co2 gas is released it will fizz. Limestone dolostone and marble. Some rocks contain carbonate minerals and the acid test can be used to help identify them. A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube.

2 hcl aq caco3 s cacl2 aq h2o l co2 g if you are talking about a marble counter top then i would advise against adding dilute hcl to that surface that because you will ruin it. The evolved gas was then passed through lime water. Click each image to see positive and negative results of the acid test. Being alkaline it reacts with hydrochloric acid to produce calcium chloride water and carbon dioxide.

Dolostone is a rock composed of almost entirely of dolomite. The evolved gas was then passed through lime water. The reaction takes place spontaneously. A student dropped a few pieces of marble in dilute hydrochloric acid contained in a test tube.