Ответы на вопрос:
Baoh2+h2so4=baso4+h2o mв-ва((baoh2)=40*0.171=6.84г v(baoh2)=6.84/171=0.04 v(baoh2): v(baso4)=1: 1 m(baso4)=v(baso4)*m(baso4) m(baso4)=0.04*233=9.32
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