Hỗn hợp X có khối lượng 41,15 gam gồm KClO3, Ca(ClO3)2, CaCl2 và KCl. Nhiệt phân hoàn toàn X thu được 6,72 lít O2 (đktc), chất rắn Y gồm CaCl2 và KCl. Toàn bộ Y tác dụng vừa đủ với 0,15 lít dung dịch K2CO3 1M thu được dung dịch Z. Lượng KCl trong Z nhiều gấp 5 lần lượng KCl trong X. Phần trăm khối lượng KCl trong X là
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Hỗn hợp X có khối lượng 41,15 gam gồm KClO3, Ca(ClO3)2, CaCl2 và KCl. Nhiệt phân hoàn toàn X thu đượ...
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