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mot binh kin' dung tich ko doi 4,928 lit o $27,3^{0}$C va 2atm chua' oxi .Phong dien qua binh` roi dua ve nhiet do ban dau, thay ap suat la p atm.Cho hon hop khi qua KI co' du . De trung hoa luong KOH sih ra can 200ml dung dich HCl 0,4M . Tinh' hieu suat fan ung ozon hoa' va` ap' suat' p ?
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