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Dimensional Analysis and Mole
Conversion factor:
6.022 x 1023 amu = 1 gram
AND THEN
Define the Mole as 6.022 x 1023 Units (where Unit equals MOLECULES or ATOMS)
Since the atomic mass of one atom of 12C is equal to 12.00000 amu
How much will one mole of 12C weigh in grams
12.00000 amu x
atom
1 gram
6.022 x1023 amu
6.022 x 1023 atoms
1 mole
=
12.0000 grams