Dẫn 5,6 lít (đktc) hỗn hợp khí X gồm oxi và ozon đi qua dung dịch KI dư thấy tạo thành dung dịch Y và 38,1 gam chất rắn màu tím đen. Để trung hòa dung dịch Y cần dùng V ml dung dịch HCl 0,5M. Tính tỉ khối của X so với H2

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