N(H2S) = 0.125*10^23
n(H2S)=?
V(H2S)=?
m(H2S)=?
n(H2S)= N(H2S) / Na
n(H2S)= 0.125*10^23 / 6*10^23 моль^-1
n(H2S)=0.02 моль
* Na = 6*10^23 моль^-1 конста́нта Авогадро
n(H2S)= V(H2S) / Vm
V(H2S) = n(H2S)*Vm
V(H2S)= 0.02 моль * 22.4 дм^3/ моль
V(H2S)=0.45 дм^3
* Vm=22.4 дм^3/ моль моля́рный объём'
n(H2S)= m(H2S)/M (H2S)
m(H2S)= n(H2S)* M (H2S)
m(H2S)= n(H2S)* (2*Ar(H) +Ar (S) ) г/ моль
m(H2S)= 0.02 моль * (2*1 +32) г/ моль
m(H2S)= 0.02 моль *34 г/ моль
m(H2S)=0.68 г
*M(H2S) молярная масса сероводорода
Zn(OH)2 =
NaOH + HC1 =
SO3 + NaOH =
Cu(OH)2 =
P2O5 + NaOH =
NaOH + FeCL3 =
H2SO4 + AL(OH)3 =
SO2 + Ba(OH)2 =
LiOH + CuCL2 =
Fe(OH)3 =
Ca(OH)2 + CO2 =
AL2(SO4)3 + KOH =
H3PO4 + Ba(OH)2 =
HNO3 + Ca(OH)2 =
AL(OH)3 =
Ba(OH)2 + Na2SO4 =
Mg + НС1 =
Na2CО3 + Н2SO4 =
Na2 CO3 + H3PO4 =
Н2S04 + BaСl2 =
AL + НС1 =
H2SO3 + BaO =
HCL + K2 O =
HNO3 + CaO =
Zn + Н2SO4 =
K2 CO3 + HCL =
Ca + H3PO4 =
Na2O + H3PO4 =
Zn(OH)2 + НС1 =
Mg + CuС12 =
NaOH + FeC13 =
Li2 CO3 + H3PO4 =
AL + CuBr2 =
H3PO4 + BaCL2 =
AgNO3 + CaCL2 =
Zn + CuSO4 =
Ca3 (PO4 )2 =
ZnCL2 + Н3 PO4 =
CaCO3 =
Mg + FeCL2 =
N(H2S) = 0.125*10^23
n(H2S)=?
V(H2S)=?
m(H2S)=?
n(H2S)= N(H2S) / Na
n(H2S)= 0.125*10^23 / 6*10^23 моль^-1
n(H2S)=0.02 моль
* Na = 6*10^23 моль^-1 конста́нта Авогадро
n(H2S)= V(H2S) / Vm
V(H2S) = n(H2S)*Vm
V(H2S)= 0.02 моль * 22.4 дм^3/ моль
V(H2S)=0.45 дм^3
* Vm=22.4 дм^3/ моль моля́рный объём'
n(H2S)= m(H2S)/M (H2S)
m(H2S)= n(H2S)* M (H2S)
m(H2S)= n(H2S)* (2*Ar(H) +Ar (S) ) г/ моль
m(H2S)= 0.02 моль * (2*1 +32) г/ моль
m(H2S)= 0.02 моль *34 г/ моль
m(H2S)=0.68 г
*M(H2S) молярная масса сероводорода
Zn(OH)2 =
NaOH + HC1 =
SO3 + NaOH =
Cu(OH)2 =
P2O5 + NaOH =
NaOH + FeCL3 =
H2SO4 + AL(OH)3 =
SO2 + Ba(OH)2 =
LiOH + CuCL2 =
Fe(OH)3 =
Ca(OH)2 + CO2 =
AL2(SO4)3 + KOH =
H3PO4 + Ba(OH)2 =
HNO3 + Ca(OH)2 =
AL(OH)3 =
Ba(OH)2 + Na2SO4 =
Mg + НС1 =
Na2CО3 + Н2SO4 =
NaOH + HC1 =
Na2 CO3 + H3PO4 =
Н2S04 + BaСl2 =
AL + НС1 =
H2SO3 + BaO =
HCL + K2 O =
H2SO4 + AL(OH)3 =
H3PO4 + Ba(OH)2 =
HNO3 + CaO =
Zn + Н2SO4 =
K2 CO3 + HCL =
Ca + H3PO4 =
Na2O + H3PO4 =
Zn(OH)2 + НС1 =
Mg + CuС12 =
Na2CО3 + Н2SO4 =
NaOH + FeC13 =
Li2 CO3 + H3PO4 =
Н2S04 + BaСl2 =
AL + CuBr2 =
H3PO4 + BaCL2 =
AgNO3 + CaCL2 =
Zn + CuSO4 =
K2 CO3 + HCL =
Ca3 (PO4 )2 =
ZnCL2 + Н3 PO4 =
AL2(SO4)3 + KOH =
Ba(OH)2 + Na2SO4 =
CaCO3 =
Mg + FeCL2 =