A sample of phosphorus trifluoride, PF₃, contains 1.400 moles of the substance. How many atoms are in the sample?

Name: A sample of phosphorus trifluoride, PF 3 , contains 1.400 moles of the substance. How many atoms are in the sample?
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Question

Quizplus · Accepted Answer

1 mole of PF3 contains 4 moles of atoms (1 P atom and 3 F atoms). So, 1.400 moles of PF3 contains 1.400 moles * 4 moles of atoms/mole = 5.6 moles of atoms. 5.6 moles of atoms * 6.022 × 10^23 atoms/mole = 3.372 × 10^24 atoms.

A Sample of Phosphorus Trifluoride, PF3, Contains 1

A Sample of Phosphorus Trifluoride, PF₃, Contains 1