1,- NaxSy
x:y= 59/23 : 41/32 =2,6 : 1,3= 2:1
-Na2S
2,-HxOy
x:y= 11,1/1: 88,9/16 = 11,1 : 5,56= 2:1
-H2O
3, - CaxOy
-x :y= 71,4/40 : 28,6 / 16 = 1,785 : 1,7875 = 1 :1
-CaO
TICK NHA.
C3:
1) %S= 100-59=41%
Gọi: CT của hc: NaxSy
x : y= %Na/23 : %S/32= 59/23 : 41/32= 2.56 : 1.28= 2 : 1
Vậy: CT: Na2S
2) Gọi: CT: HxOy
x : y= %H/1 : %O/16= 11.1/1 : 88.9/16= 11.1 : 5.5 = 2 : 1
CT: H2O
3) %O= 100 - %Ca= 100 - 71.4= 28.6%
Gọi: CT : CaxOy
x : y= %Ca/40 : %O/16= 71.4/40 : 28.6/16= 1.78 : 1.75= 1 : 1
Vậy: CT CaO
1) %S = 100 - 59 = 41 (%)
Gọi: CTTQ: NaxSy
Ta có: x : y= %Na/23 : %S/32= 59/23 : 41/32= 2.56 : 1.28= 2 : 1
Vậy: CT: Na2S
2) Gọi: CTTQ: HxOy
Ta có: x : y= %H/1 : %O/16= 11.1/1 : 88.9/16= 11.1 : 5.5 = 2 : 1
Vậy CT: H2O
3) %O = 100 - %Ca = 100 - 71.4 = 28.6% Gọi: CTTQ : CaxOy
Ta có: x : y = %Ca/40 : %O/16 = 71.4/40 : 28.6/16 = 1 : 1
Vậy CT: CaO_