Объяснение:
1) Ar(C) = 12
Ar(H)=1
Ar(N) = 14
Ar(O) = 16
Ar(Ag)=108
Ar(H) = 1
Ar(Ni) = 59
2) Si(IV)H(I), Cr(VI)O(II), H(I)S(II), C(IV)O(II), C(II)O(II), S(VI)O(II), S(IV)O(II), Fe(III)O(II), Fe(II)O(II), H(I)Cl(I), H(I)Br(I), Cl(V)O(II), Cl(VII)O(II), P(III)H(I), K(I)O(II), Al(III)O(II), P(V)O(II), N(IV)O(II), N(V)O(II), Cr(III)O(II), Si(IV)O(II), B(III)O(II), Si(IV)H(I), Mn(VII)O(II), Mn(II)O(II), Cu(II)O(II), N(III)O(II)
A) CaCl2, H2O, PH3, Ag2O, Fe2O3, N2O5, CaO, CrO3
Б) HCl, PH3, Cl2O7, FeO(Fe2O3)
CO2, NO2, BaO, Al2S3
n(H2)=14.78l/22.4l/mol=0.66mol
n(Al)=n(H2)/3*2=0.66mol/3*2=0.44mol
m(Al)=n(Al)*M(Al)=0.44mol*27g/mol=11.88g
2AI+2H2SO4-->AI2(SO4)3+3H2
Fe+H2SO4-->FeSO4+H2
m(H2SO4)=V*p*w%=806*1,07*0,1=86,2g
n(H2SO4)=m/M=86,2g / 98g/mol=0,889mol
n(AI)=n(H2SO4)=0,44mol
m(H2SO4) реакция с AI=0,44mol*98g/mol=43,12g
m(H2SO4) реакция с Fe=86,2g-43,12g=43g
n(H2SO4)=m/M=43g/98g/mol=0,439mol
n(H2SO4)=n(Fe)=0,439mol
m(Fe)=n*M=0,439*56=24,57g
m(общ AI и Fe)=11,88+24,57=36,45g
w(Fe)=m(вещ)/m(общ) *100%=24,57/36,45*100=67,4%
Объяснение:
1) Ar(C) = 12
Ar(H)=1
Ar(N) = 14
Ar(O) = 16
Ar(Ag)=108
Ar(H) = 1
Ar(Ni) = 59
2) Si(IV)H(I), Cr(VI)O(II), H(I)S(II), C(IV)O(II), C(II)O(II), S(VI)O(II), S(IV)O(II), Fe(III)O(II), Fe(II)O(II), H(I)Cl(I), H(I)Br(I), Cl(V)O(II), Cl(VII)O(II), P(III)H(I), K(I)O(II), Al(III)O(II), P(V)O(II), N(IV)O(II), N(V)O(II), Cr(III)O(II), Si(IV)O(II), B(III)O(II), Si(IV)H(I), Mn(VII)O(II), Mn(II)O(II), Cu(II)O(II), N(III)O(II)
A) CaCl2, H2O, PH3, Ag2O, Fe2O3, N2O5, CaO, CrO3
Б) HCl, PH3, Cl2O7, FeO(Fe2O3)
CO2, NO2, BaO, Al2S3