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TanyaDaliv
@TanyaDaliv
December 2021
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Какую массу олеума с w(so3)=30% нужно добавить к 131 г водного раствора с w(h2so4)=40%, чтобы получить раствор с w(so3)=5%?
Ответ: 1424,6 г
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TanyaDaliv
October 2021 | 0 Ответы
perevedite iz aktivnogo zaloga v passivnyj change the sentences from active to p
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