Respuesta :

1 mol = 6.022 x 10^23 atoms

3.54 mol * (6.022 x 10^23 atoms / 1 mol) = 2.13 X 10^24

The answer is A

The number of atoms in 3.54mol of S is 2.13 × 10²⁴ atoms.

HOW TO CALCULATE NUMBER OF ATOMS:

  • The number of atoms of a substance can be calculated by multiplying the number of moles of that substance by its Avogadro's number as follows:

no. of atoms = no. of moles × 6.02 × 10²³

  • According to this question, there are 3.54 moles of S, hence, the number of atoms can be calculated as follows:

no. of atoms = 3.54 × 6.02 × 10²³

no. of atoms = 21.31 × 10²³

no. of atoms = 21.31 × 10²³

no. of atoms = 2.131 × 10²⁴ atoms.

  • Therefore, the number of atoms in 3.54mol of S is 2.13 × 10²⁴ atoms.

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