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AP Chemistry/Unit 1: Atomic Structure and Properties
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Calculating Mass from Moles

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A compound with the molecular formula C₂H₆O has an average molecular mass of 46.07 amu. Which calculation correctly determines the mass, in grams, of 2.50 moles of this compound?

A

2.50 mol × (46.07×6.022×10^23) g = 6.94×10^25 g

B

2.50 mol × 46.07 g/mol = 115.18 g

C

2.50 mol × (46.07/6.022×10^23) g = 1.91×10^-22 g

D

2.50 mol ÷ 46.07 g/mol = 0.0543 g

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