Marble In Dilute Hcl

Marble is chemically calcium carbonate.

Marble in dilute hcl.

When dilute hcl is added to calcium carbonate it forms calcium chloride water and carbon dioxide. 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. Being alkaline it reacts with hydrochloric acid to produce calcium chloride water and carbon dioxide. A student dropped a few pieces of marble in dilute hydrochloric acid contained in a test tube.

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. The evolved gas was then passed through lime water. Marble is found in various places around the world including india greece spain turkey egypt italy and the united states of america. Limestone is composed almost entirely of calcite and will produce a vigorous fizz with a drop of hydrochloric acid.

While marble can appear superficially similar to quartzite a piece of marble will be able to be scratched by a metal blade and marble will fizz on contact with dilute hydrochloric acid. The reaction takes place spontaneously. Pieces of marble are thrown into hydro chloric acid. It will produce a very weak fizz when a drop of cold hydrochloric.

Some rocks contain carbonate minerals and the acid test can be used to help identify them. What will happen if an excess of gas is passed through lime water. The percentage of c a c o 3 in the marble is. Calcium carbonate is dissolved by hydrochloric acid thereby forming gaseous carbon dioxide.

Dolostone is a rock composed of almost entirely of dolomite. A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. 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. The acid test on rocks.

Asked oct 28 2017 in class x science by priya12 12 631 points. The evolved gas was then passed through lime water. 10 gram of a piece of marble was put into excess of dilute hcl acid. Click each image to see positive and negative results of the acid test.

What change would be observed in lime water. The combined reactants have a higher chemical potential than the combined products i e. When the reaction was complete 1 1 2 0 c m 3 of o 2 was obtained s t p. With the help of balanced chemical equations for all the changes explain the observations.