12) Naturally occurring argon is composed of 0.3365% of 36Ar (atomic mass, 35.9675 u), 0.0632% of 38Ar (atomic mass, 37.9627 u), and 99.6003% of 40Ar (atomic mass, 39.9624 u). Use these data to calculate the average atomic mass of argon.
3 answers
(35.9675*0.003365) + (37.9627*0.000632) + (39.9624*0.99600) = ?
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a 21.0kg iron weightlifting plate has a volume of 2670 cm3 what is the density of the iron plate in g/cm3?
3 answers