Nr. moli n=m/M
M S= 32 g
320 Kg = 320000 g S
n= 320 .000 / 32 = 10000 moli = 10 Kmol
1K mol =1000 moli
1 mol S....................32g S ....... ..........6,23 *10²³ atomi S
10000 moli S............320000 gS ................X atomi S,
X= 6,23 *10²⁷ atomi de S sulf
