The number of F atoms in 1.506×1024 molecules of trifluoroacetic acid, C2HF3O2 is 4.515 × 10^24 atoms.
The formula of trifluoroacetic acid is C2HF3O2
The molar mass of the compound is; 2(12) + 1 + 3(19) + 2(16) = 114 g/mol
Number of moles of the compound is obtained by;
1 mole of the compound contains 6.02 × 10^23 molecules
x moles of the compound contains 1.506 × 10^24 molecules
x = 1.506 × 10^24 molecules × 1 mole /6.02 × 10^23 molecules
x = 2.5 moles of trifluoroacetic acid.
Now;
Number of F atoms in the sample = 2.5 ×2 × NA
Where; NA = Avogadro's number
Number of F atoms in the sample = 2.5 × 3 × 6.02 × 10^23 atoms
= 4.515 × 10^24 atoms
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