Mavzu: Moddalarning berilgan massasi ulushi, foiz ulushi aniqlash, murakkab moddalarning formulalarini keltirib chiqarishga oid masalalar

16-masala. 2. 4 mol xlor mol molekulasining massasini toping.
2,4 mol----------x=170,4
1 mol------------71
17-masala. 128 g misning modda miqdorini toping.
128---------x=2 mol
64----------1mol
18-masala.120 g grafitdagi uglerodning modda miqdorini toping.
120------------x=10 mol
12-------------1 mol
19-masala.17 g natriy nitratning modda miqdorini toping.
17----------------x=0,2mol
85----------------1mol
20-masala.120,2 g kaliy fosfatning modda miqdorini toping.
120,2----------------x=0,56mol
212-----------------1mol