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匿名 發問於 科學及數學化學 · 9 年前

[chem]何謂outline the experiment

我有題目係OUTLINE THE EXPERIMENTAL PROCEDURE AND DATA TREATMENT HOW YOU WOULD DETERMINE THE EMPIRICAL FORMULA OF SILVER OXIDE....想知道咩野OUTLINE THE EXPERIMENTAL PROCEDURE AND DATA TREATMENT?我應該要點寫先岩?要包括D咩野?

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  • 匿名
    9 年前
    最愛解答

    To outline the the experimental procedure, you have to describe what you do in order to achieve you aim. For the aim, determine the emprical formular of silver oxide, you can first state that measure and record the mass of certain amount of silver oxide. Then heat these silver oxide strongly so the silve oxide will decompose to give silver metal and oxygen gas. Then record the mass of and soild residue.

    For the data treatment, as silve oxide will decompose to give silver metal and oxygen gas, if all silve oxide is decomposed, the mass of remining soild residue will be the total mass of silver in the sample of silver oxide you test. As the oxygen in the silver oxide sample is converted to oxygen gas and the oxygen gas will released to the atmosphere, so the mass loss is the total mass of oxygen in the silver oxide sample. This can easily be found by subtracting the mass of the soild residue for the mass of the silver oxide sample used.

    After obtained the mass of silver and oxygen, divide the mass with their corresponding relative atomic mass to get the number of mole of atom of each eelement in the silver oxide. Then the empirical formula can be found as the mole ratio of the two element.

    In throey, the mole ratio of silver and oxygen atom should be 2:1 so the empirical formula of silver should be Ag2O

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