How many moles are in 3.18times 10^22 particles of SF_(6) 5.28 molegules 00528 molecules 5.28 mol 0.0528 mol

To determine the number of moles in $3.18\times 10^{22}$ particles of $SF_{6}$, we need to use Avogadro's number, which is $6.022\times 10^{23}$ particles per mole.<br /><br />Given:<br />Number of particles = $3.18\times 10^{22}$<br /><br />Using the formula:<br />Number of moles = Number of particles / Avogadro's number<br /><br />Substituting the values:<br />Number of moles = $3.18\times 10^{22}$ particles / $6.022\times 10^{23}$ particles/mole<br /><br />Calculating the result:<br />Number of moles = 0.0528 moles<br /><br />Therefore, the correct answer is 0.0528 moles.