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一、引言:當量是純質(元素)與8克氧或1.008克氫化合時的重量,這個意義每一位化學教師都非常熟悉,如果作表演實驗或學生自己作實驗時,常用氫作還原劑,以還原已知重量的氧化銅,由氧化銅失去的重量即为已知氧化銅中氧的重量,便可計算出銅與8克氧化合時的重量。此重量即为銅之當量。其反應式为: CuO+H_2→Cu+H_2O. 在許多學校里作此實驗時,實驗者常常帶有一個恐懼心理,或者躲避儀器很遠,事實
First, the introduction: Equivalent to pure (elemental) and 8 grams of oxygen or 1.008 grams of hydrogen when the weight of the compound, the significance of every chemistry teacher are very familiar with, if performance experiments or students to experiment, often used for hydrogen reduction Agent to restore a known weight of copper oxide, the weight lost from the copper oxide is the weight of oxygen in the known copper oxide, the weight of the copper when combined with 8 grams of oxygen can be calculated. This weight is the copper equivalent. The reaction is: CuO + H 2 → Cu + H 2 O. In many schools to do this experiment, the experimenter often with a fear, or avoid the instrument far away, the fact that