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If the mass of an unknown compound containing 1.0x10^21 atoms is 5.313 picograms, how much does 1 mole of this compound weigh?

a) 8.0 g
b) 16 g
c) 32 g
d) 64 g

User Antun Tun
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1 Answer

5 votes

Final answer:

The molar mass for the compound is 176.124 g/mol. The mass of 1 mole of this compound is approximately -0.0112 g.

Step-by-step explanation:

The molar mass for this compound is computed to be 176.124 g/mol. The given number of moles is a very small fraction of a mole (~10-4 or one-ten thousandth); therefore, the corresponding mass is expected to be about one-ten thousandth of the molar mass (-0.02 g). Performing the calculation yields: -0.0112 g.

User BrTkCa
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