Răspunsuri

2014-03-31T20:42:01+03:00
1 mol NH3......6,023 * 10²³ molecule
1,5 moli NH3.............x molecule               x = 9,0345 * 10²³ molecule 
Folosesti nr lui Avogadro stiind ca intr-un mol de orice substanta se afla 6,023 * 10 la 23 molecule :)...

1 5 1