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23-08-2022
Chemistry

Answered

In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/12 the mass of an atom of ¹²C . Before then, it was defined as 1/16 the average mass of an atom of naturally occurring oxygen (a mixture of ¹⁶O, ¹⁷O, and ¹⁸O). The current atomic mass of oxygen is 15.9994 amu.
(c) Did the mass of a mole of a substance change?

Answer :

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