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Cho 100g dd Na2CO3 16,96%, tác dụng với 200g dd BaCl2 10,4%. Sau phản ứng, lọc bỏ kết tủa được dd A. Tính nồng độ % các chất tan trong dd A
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Cho 100g dd Na2CO3 16,96%, tác dụng với 200g dd BaCl2 10,4%. Sau phản ứng, lọc bỏ kết tủa được dd A....
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