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How many atoms are in 1.4 mol of phosphorus trifluoride (PF3)? a. 8.4 × 1024 b. 3.4 × 1023 c. 8.4 × 1023 d. 3.4 × 1024
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How many atoms are in 1.4 mol of phosphorus trifluoride (PF3)?

a. 8.4 × 1024
b. 3.4 × 1023
c. 8.4 × 1023
d. 3.4 × 1024

User Swilliams
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7.2k points

2 Answers

4 votes

It's D 3.37 x 10^24 Round up

User Yaniro
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6.9k points
3 votes
NA = 6.022*10^23
number of atoms = number of moles * avogadros number
number of atoms = 6.022*10^23 * 1.4 moles * 4 atoms / molecules of PCl3
Number of atoms = 3.37*10^23 atoms.
User Bundyo
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6.6k points
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