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Which isotope is used as a standard for all other atomic masses?

A. carbon-12


Sagot :

Final answer:

Carbon-12 serves as the standard for atomic masses in chemistry, and the mole concept based on Avogadro's number facilitates conversions between moles, mass, and particles.


Explanation:

Carbon-12 is used as the standard for all other atomic masses in chemistry. The concept of a mole is based on Avogadro's number which is approximately 6.022 x 10^23 and is defined as the number of atoms contained in exactly 12 grams of carbon-12. By using the mole, chemists can convert between the number of moles of a substance, the mass of a substance, and the number of particles of that substance.


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