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phongnguyetvan2005
2 năm trước
Cho 5,4 gam Al tác dụng với 200 ml dung dịch H2SO4 2M (loãng) thu được dung dịch B. Cho x ml dung dịch NaOH 1M vào B và khuấy đều . với giá trị nào của x để kết tủa lớn nhất; để không có kết tủa
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