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hieulilom0908
2 năm trước
Cho dd loãng của hỗn hợp 2 axit HCl và H2SO4 . Lấy 20ml dd đó trung hòa lượng axit trong đó bằng lượng vừa đủ là 150ml dd Ba(OH)2 0,2M . Phản ứng trung hòa đó đã tạo thành 4,66g kết tủa trắng. Hãy xác định nồng độ mol của mỗi axit trong dd hỗn hợp
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