[學科] 97年成大考古題
1.
Order the following from the strongest to the weakest base:
(1)NH3 (2)C2H5NH2 (3)CH3NH2 (4)C6H5NH2
(A)1,3,2,4
(B)4,2,3,1
(C)2,3,1,4←為什麼大家認為是這個答案呢?可以教我嗎??怎麼用推拉電子看呢???
(D)4,1,3,2
(E)2,3,4,1
2. 13 12
Calculate the number of stages needed to change a mixture of CO2 and CO2
13 13
that is originally 0.10%(by moles) CO2 to a mixture that is 0.010% CO2 by
13
a gaseous diffusion process .(The mass of C is 13.003355 amu)
(A)205
(B)120
(C)365
(D)620
(E)435
第一題我翻書只找到第幾級胺的鹼性大小,那像甲胺乙胺的鹼性呢?
第二題他題目的意思我看不太懂ㄟ,我只知道它是擴散的
可以請知道的大大教我嗎?
謝謝大家了!!
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