Ответ:BaCl2 + H2SO4= BaSO4 + 2HCl
n(BaCl2)=m/M=7.1/208=0.03 моль
n(H2SO4)=m/M=23.3/98=0.23 моль (избыток)
n(H2SO4)=n(BaSO4)=1:1=0.23
m(BaSO4)=0.23*233=53.59 г
2.NaCl + AgNO3= AgCl + NaNO3
n(NaCl)=m/M=5.85/143.5=0.04 моль(избыток)
n(AgNO3)=m/M=6/170=0.03 моль
n(NaCl)=n(AgCl)=0.04
m(AgCl)=0.04*143.5=5.74 г
3.Na2CO3 + 2HCl= H2CO3 + 2NaCl
n(Na2CO3)=V/Vm=21.2/22.4=0.94 (избыток)
n(HCl)= V/Vm=12/22.4=0.53
n(Na2CO3)=n(H2CO3)=1:1=0.94
V(H2CO3)=n*Vm=0.94*22.4=21.56 л
Объяснение:
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Ответ:BaCl2 + H2SO4= BaSO4 + 2HCl
n(BaCl2)=m/M=7.1/208=0.03 моль
n(H2SO4)=m/M=23.3/98=0.23 моль (избыток)
n(H2SO4)=n(BaSO4)=1:1=0.23
m(BaSO4)=0.23*233=53.59 г
2.NaCl + AgNO3= AgCl + NaNO3
n(NaCl)=m/M=5.85/143.5=0.04 моль(избыток)
n(AgNO3)=m/M=6/170=0.03 моль
n(NaCl)=n(AgCl)=0.04
m(AgCl)=0.04*143.5=5.74 г
3.Na2CO3 + 2HCl= H2CO3 + 2NaCl
n(Na2CO3)=V/Vm=21.2/22.4=0.94 (избыток)
n(HCl)= V/Vm=12/22.4=0.53
n(Na2CO3)=n(H2CO3)=1:1=0.94
V(H2CO3)=n*Vm=0.94*22.4=21.56 л
Объяснение: