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lehuybau
2 năm trước
mọi người ko chép mạng nha. giúp mik vs. Từ dung dich H2S04 98% (khối lượng riêng = 1,84 g/ml), dung dịch HCl 5M, nước cất và các dụng cụ cần thiết, trình bày cách pha chế để được 200 ml dung dich chứa hỗn hợp H2S04 1M và HCL 1M
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