Question

A mole is defined as the number of carbon atoms in __________ g of pure ¹²C.

Answer 1

Answer:

The number equal to the number of carbon atoms in exactly 12 grams of pure ¹²C which is also called as the Avogadro's number.

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Answer 2

Answer: The number of atoms in exactly 12 grammes of pure carbon-12 is the value of a mole.

Explanation:

• Avogadro's Number is the number of particles contained in one mole (6.0221421 x 10²³).

• The number of particles in a mole (mol) is 6.02214 x 10²³.

• Reactions are balanced as it is based on the number of moles of each element in the reaction. Solution concentrations are frequently described in terms of moles per litre or moles per kg of solvent.

• A carbon-12 atom, which according to the periodic table weighs about 12g, has an AMU mass of 1/12 that. The mass indicated in the periodic table corresponds to 6.022 x 10²³ carbon atoms, or a mole of carbon atoms. Therefore, despite the fact that a carbon atom weighs 12 AMU and 1 AMU = 1.66 x 10⁻²⁴g, the periodic table's mass units are not accurate.

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