A 1.583 g sample of an element contains 8.959 $\times$ 10²¹ atoms.What is the element symbol?

Name: A 1.583 g sample of an element contains 8.959 $\times$ 10 21 atoms.What is the element symbol?
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Quizplus · Accepted Answer

The molar mass of the element is:$$1.583 g / (8.959 	imes 10^{21} atoms) = 1.769 	imes 10^{-22} g/atom$$The atomic mass of the element is:$$1.769 	imes 10^{-22} g/atom 	imes 6.022 	imes 10^{23} atoms/mol = 106.42 g/mol$$The element with an atomic mass of 106.42 g/mol is palladium (Pd).

A 1583 G Sample of an Element Contains 8 ×\times× 1021 Atoms

A 1583 G Sample of an Element Contains 8 $\times$ 10²¹ Atoms