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How many g-atoms and no. of atoms are there in 120 g carbon?


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Last updated date: 30th May 2024
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Answer
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Hint :The gram atomic weight of an element is one gram atom. The gram atom is defined as the mass of an element that is numerically equal to the atomic weight in gram. 1 g carbon atom a = 12 g carbon atomic weight

Complete Step By Step Answer:
The gram atomic weight of an element is one gram atom. The gram atom is defined as the mass of an element that is numerically equal to the atomic weight in gram. 1 g carbon atom a = 12 g carbon atomic weight
No. of g-atoms of Carbon = Given Mass/Atomic Mass = $ \dfrac{{120}}{{12}} $ = 10
A mole of a substance is described as 6.022 x 10²³ units of that substance (such as atoms, molecules, or ions). Avogadro's number, also known as Avogadro's constant, is 6.022 x 10²³. The mole concept can be used to convert between mass and atom count.
1 g of C atom has 6.022 x 10²³
10 g of C atom has 6.022 x 10²³ x 10 = 60.22 x 10²³ moles.

Note :
Carbon is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.
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