The molar mass of sucrose (C12H22O11) is 342.3 g/mol. A chemist has a 0.500-mol sample of sucrose. What is the mass, in grams, of this sample?
Answer
A
171 grams
B
342 grams
C
500 grams
D
684 grams
Explanation
Multiply the amount in moles by the molar mass: 0.500 mol × 342.3 g/mol = 171.15 g. Rounded to three significant figures, the sample has a mass of 171 grams, choice A.
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