How moles of silicon in a $10*g$ mass of same?

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Answer 1 · 2017-05-03T06:45:57

I take it you want the $"number of moles"$ of element in a $10*g$ mass....

$"Moles of stuff"="Mass"/"Molar Mass"$

And for this problem,

$"Moles of silicon"=(10*g)/(32.1*g*mol^-1)=??*mol??$

From where did I get the molar mass of silicon?

How moles of silicon in a 10*g10*g mass of same?