How many particles will be contained in 3 mol of NaCl formula unit?

One mole of NaCl contains 6.022 x 10^23 formula units. Therefore, 3 moles of NaCl will contain:

3 moles x 6.022 x 10^23 formula units/mole = 1.8066 x 10^24 formula units

Therefore, 3 moles of NaCl will contain 1.8066 x 10^24 formula units.

Formula: 3 mol NaCl

Number of moles of NaCl: 3 mol

Number of formula units in 1 mole of NaCl: 6.022 x 10^23 formula units/mol (Avogadro's number)

Number of formula units in 3 mol of NaCl:

= 3 mol x 6.022 x 10^23 formula units/mol
= 1.8066 x 10^24 formula units

Therefore, 3 mol of NaCl will contain 1.8066 x 10^24 formula units. Each formula unit of NaCl consists of one Na+ ion and one Cl- ion, so the total number of particles (ions) will be:

Number of particles: 2 x 1.8066 x 10^24 = 3.6132 x 10^24 particles