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votinhtheogio2000
2 năm trước
Cho 1 lượng dư dd HCl đặc vào 21,75 g MnO2, thu đc V lít khí Clo (đktc). a) viết pt phản ứng và tính thể tích khí ở đktc b) hấp thụ toàn bộ V lít khí Clo trên vào 150 ml dd NaOH 15% có d= 1,28. Tính C% các chất thu đc trong dd A
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