What is the atomic weight of an element X for which a sample containing \[1.58\times {{10}^{22}}\] atoms weigh 1.05 g?

What is the atomic weight of an element X for which a sample containin

1.	What is the atomic weight of an element X for which a sample containing \[1.58\times {{10}^{22}}\] atoms weigh 1.05 g?
A.	28 g
B.	20 g
C.	40 g
D.	23 g
Answer» D. 23 g

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What is the atomic weight of an element X for which a sample containing \[1.58\times {{10}^{22}}\] atoms weigh 1.05 g?

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