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

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Answer 1 · 2017-05-03T06:45:57

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

$Moles of stuff = \frac{Mass}{Molar Mass}$ $"Moles of stuff"="Mass"/"Molar Mass"$

And for this problem,

$Moles of silicon = \frac{10 \cdot g}{32.1 \cdot g \cdot m o l^{- 1}} = ? ? \cdot m o l ? ?$ $"Moles of silicon"=(10*g)/(32.1*g*mol^-1)=??*mol??$

From where did I get the molar mass of silicon?

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