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olgagaldytskaya

Zn+H2SO4=ZnSO4+H2

m(в-ва H2SO4)=196 г × 0,1=19,6 г

n(H2SO4)=19,6 г / 98 г/моль=0,2 моль

n(H2)=0,2 моль

V(H2)=0,2 моль × 22,4 дм^3/моль= 4,48 дм^3


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