CO₂ or Carbon-dioxide is the linear compound that is made out of 2 oxygen atoms double bonded to the central carbon atom. Even though the C-O bonds are moderately polar, overall carbon dioxide is non-polar. Linear geometry of molecule assures that any dipole is cancelled out perfectly by the corresponding antipode. Irrespective of the non-polarity, carbon dioxide is slightly soluble in the water. Carbon dioxide dissolves in water for forming carbonic acid. It is one of the major product of combustion, in addition to water. It is the colorless and odorless gas that is found in the atmosphere, our bodies and in various other places. Every time we breathe it we exhale CO₂. On the contrary, plants take it out from the air and use it for making food. Carbon dioxide in the air is crucial for the trees and plants. They require it for the purpose of photosynthesis. On the other side living organisms like humans breathe in with oxygen and releases the carbon dioxide at the same time. At the same time plants and trees take in carbon dioxide and releases oxygen. Carbon dioxide inhaled by them is used for making sugar that generally becomes our food. Photosynthesis process can be represented through following equation –

In the above equation CO₂ signifies carbon dioxide and H₂O signifies water. Using the energy and pigment from sun that is found in the green leaves called as chlorophyll, plants produce the glucose that is the form of sugar and O₂ is the oxygen gas that is released. Unlike the plants, human beings produce CO₂ as the waste product that the human body is required to get rid of. For plants this is handy as they are required to intake the same for producing their food. In the same way, it works out well for the human being as plants provide oxygen to add this important gas to the atmosphere.

Molar mass is grams of substance per mole of substance. In other word, unit of the molar mass is the gram per mole (g/mol). It can be used for converting between moles and grams. For determining the molar mass, atomic masses of all atoms in the compound are added. One mole of the substance has 6.02 x 10²³ atoms or the molecules. Hence, molar mass determines how many grams are required to have 6.02 x 10²³ atoms or the molecules. Carbon dioxide is the covalent compound that is composed of 2 oxygen atoms that is double bonded to carbon atom. At the room temperatures, carbon dioxide is the colorless and odorless gas that is 60% denser as compared to the normal air. Further, carbon dioxide is the natural byproduct of cellular respiration cycle in the animals and one of the major reactant that is processed during the photosynthesis of plant. It is also the naturally occurring greenhouse gas in the atmosphere of earth and is formed through activity of the volcanoes, hot springs, animal respiration, fire and geological movement.

Each element has standard atomic weight – weighted average of all weights of different isotopes of an element. Molar mass of any element is determined through multiplying standard atomic weight by molar mass constant M_μ=1g/mol. Standard atomic weight is found on periodic table under corresponding element. For instance, arsenic has standard atomic weight of 74.9216. Multiplying the value by molar mass constants represents that the molar mass of arsenic is 74.9216 g/mol. Hence, 6.023 x 10²³ atoms of arsenic will weigh about 74.9216 grams. Molar mass of entire compound is equal to sum of molar masses of the constituents’ elements. For instance, for finding out the molar mass of water all the molar masses of its parts are added together.

Generally the procedure to find out molar mass of any compound includes 3 steps –

• Determination of molar masses of individual atomic components
• Multiplying those values by their element ratio in single molecule of compound
• Adding up together resulting values

These procedures help in finding out molar mass of any compound irrespective of its complexity.  Concept of the molar mass is crucial in chemistry as it serves as the conceptual bridge among mass of a substance and amount of the particles in those substance. As it is not possible to count the individual molecules, there is no other way to measure the amount of the particles directly in any substance. Further, though the mass of substance can be measured directly, molar mass provides a way for converting between mass of substance and amount of substance. Amount of the substance is important as chemical reactions takes place in accordance with the strict rules that govern amount of products and reactants. Amount of the chemicals required for the experimental setups are generally couched in terms of the molar mass. For instance, if an experiment requires 7 moles of the carbon dioxide, the comparable mass can be measured. Carbon dioxide has molar mass of 44.01g/mol, hence, moles of carbon dioxide are correspondent to –

44.01g/mol x 7 = 308.07 grams

Hence, if the experiment requires 7 moles of the carbon dioxide, then 308.07 grams of the carbon dioxide is required.

Chemical formula for carbon dioxide is CO₂. Entire molar mass of the carbon dioxide can be determined through adding the molar masses of atomic components together. Carbon has the molar mass of 12.0107 g/mol and oxygen has molar mass of 15.9994 g/mol. Through multiplying the values for reflecting proportions in single molecule of carbon dioxide gives –

12.0107+15.9994(2) = 44.01 g/mol

Hence, molar mass of carbon dioxide is 44.01 g/mol.

This can be explained through following –

CO2:
The molecular mass of carbon dioxide, CO2

= (1 × Atomic mass of carbon) + (2 × Atomic mass of oxygen)

= [1(12.011 u) + 2 (16.00 u)]

= 12.011 u + 32.00 u

= 44.01 u