Уравнение:BaCl2+MgSO4=MgCl2+BaSO4(осадок) m(BaCl2)=20.8 гn(BaCl2)=m(BaCl2)/M(BaCl2)n(BaCl2)=20.8/208=0.1 мольn(BaCl2)/1=n(BaSO4)/1=> n(BaSO4)=0.1 мольm(BaSO4)=n(BaSO4)*M(BaSO4)m(BaSO4)=0.1*233=23.3 г
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Уравнение:
BaCl2+MgSO4=MgCl2+BaSO4(осадок)
m(BaCl2)=20.8 г
n(BaCl2)=m(BaCl2)/M(BaCl2)
n(BaCl2)=20.8/208=0.1 моль
n(BaCl2)/1=n(BaSO4)/1
=> n(BaSO4)=0.1 моль
m(BaSO4)=n(BaSO4)*M(BaSO4)
m(BaSO4)=0.1*233=23.3 г