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lehoaptt
2 năm trước
Cho glucozơ lên men thành rượu etylic với hiệu suất 70%. Hấp thụ toàn bộ sản phẩm khí thoát ra vào 1 lít dung dịch NaOH 2M (d=1,05 g/ml) thu được dung dịch chứa 2 muối có nồng độ 12,27%. Khối lượng glucozơ đã dùng là A. 192,86 gam B. 182,96 gam C. 94,5 gam D. 385,72 gam
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