Răspunsuri

2014-04-27T17:07:21+03:00
1 mol P4.........4*6,022*10 la 23 molecule
10 moli P4...........x molecule
x=24,088 * 10 la 24 molecule
Sunt 4*6,022 pt ca sunt 4 atomi de P in molecula si fiecare atom are 6,022 molecule
1 5 1