Carbonic Acid: Occurrence, Preparation, Properties and Uses

Chemistry and homework help forum.

Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum.

Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry questions, inspire others by your chemistry vision!

Please feel free to start a scientific chemistry discussion here!

Discuss chemistry homework problems with experts!

Ask for help with chemical questions and help others with your chemistry knowledge!

Moderators: Xen, expert, ChenBeier

Post Reply
bejoy
Sr. Staff Member
Sr. Staff Member
Posts: 111
Joined: Mon Oct 27, 2014 1:57 am

Carbonic Acid: Occurrence, Preparation, Properties and Uses

Post by bejoy »

Carbonic acid is a chemical compound with the chemical formula as H2CO3 and molecular formula as CH2O3. It is an inorganic weak acid, which exists only as a solution. Carbonic acid is also known as acid of air, aerial acid or dihydrogen carbonate. It forms two kinds of salts: carbonates and bicarbonates. Ph of carbonic acid is 4.68 in 1mM.

Carbonic acid is specifically diprotic acid, which means that it has two protons which can disassociate from the parent molecule. Thus, have two disassociation constants, first for bicarbonate ion disassociation and second for disassociation of the bicarbonate ion into the carbonate ion.

Occurrence:

Carbonic acid is present in blood in the human body. It is formed in human body when water gets dissolved with carbon dioxide. It is also present in rain water, calcite, fermentation, coal, ground water, meteors, volcanoes, amino acids, proteins, oceans, plants, erythrocytes, sulphur deposits, salts, and caves.

Properties of carbonic acid:

Physical:

Appearance: Grayish white solid.

Melting point: 210 Celsius, boiling point: -78 degree Celsius.

Molecular weight: 62.024 g/mol.

Solubility: Insoluble.

Carbonic acid has a pH value of less than 7.

Carbonic acid is odorless and has alkaline taste.

Chemical:

Carbonic acid is weak and unstable dibasic acid.

It has acidity of 6.3 pK.

Preparation of Carbonic acid:

Reagents

Calcium carbonate

Hydrochloric acid solution

Litmus

Water

Read more: https://goo.gl/8sWK9X
Bejoy
chemical data analyst
www.worldofchemicals.com
Post Reply