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dieucao
2 năm trước
Đun nóng 1 loại chất béo với dung dịch NaOH vừa đủ thu được 0.46kg glyxerol và 4.31 kg hỗn hợp 2 muối của các axit béo C15H31COOH và C17H35COOH. xác định CTCT có thể của chất béo trên 2/Phản ứng tổng hợp glucozo trong cây xanh cần được cung cấp năng lượng từ ánh sáng mặt trời: 6CO2 + 6H2O + 2816kJ →(clorophin, ánh sáng)→ C6H12O6 + 6O2 Cứ trong 1 phút, mỗi cm2 lá xanh nhận được 0,5 kJ năng lượng mặt trời, nhưng chỉ có 10% được sử dụng để tổng hợp glucozo. Hãy tính thời gian để 1 cây có 1000 lá xanh ( diện tích mỗi lá 10 $cm^{2}$ ) sản sinh được 1kg glucozo
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