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anhham748
2 năm trước
Cho 0,2 mol NaOH phản ứng với 0,2 mol H2SO4 thu được dung dịch A. Biết sơ đồ phản ứng: NaOH + H2SO4 ------> Na2SO4 + H2O Tổng khối lượng chất tan trong A là?
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