Question

Calculati raportul atomic,raportul de masa,compozitia procentuala:
SO2 si Na OH
Va rog

Answer 1

SO2

raport atomic=r.a.=S:2O=1:2

raport de masa =r.m.=AS:2AO=32:2.16=32:32=1:1

compoz. proc .prin masa moleculara

MSO2=32+2.16=64

64 gSO2---------32 gS--------32 g O
100 gSO2---------X -------------Y

X=100.32:64=50 la suta S
Y=100.32:64=50 la suta O


Na OH

r.a.=1:1:1

r.m.=ANa:AO:AH=23:16:1

Comp. proc.
M=23+16+1=40

40 g NaOH-------23 g Na-------16 g O------1gH
100gNaOH---------X---------------Y-------------Z
X=100.23:40=57,5 la suta Na
Y=100.16: 40 =40 la suta O
Z=100.1 :40=2,5 la suta H