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2) How many moles of silicon are in a 56.18 g sample?
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2) How many moles of silicon are in a 56.18 g sample?

User Michael Silverstein
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You start by finding the atomic weight of Silicon from the periodic table. Silicon is 28.086 G/mol. You multiply 56.18g * 1mol/28.086g = 2.00028484 double check how you are supposed to round
User Hyomin Kim
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