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oanhbmt
2 năm trước
Lấy 160g dd CuSO4 10% vào 60g dd NaOH 20% sau phản ứng lọc chất rắn ko tan đem nung đến khối lượng ko đổi. Tính khối lượng của chất rắn thu được sau phản ứng.
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