[問題] 普化問題

[avantime (小狗兄)]

1.
A silver concentration cell is set up at 25oC with 1.0 M AgNO3 in the right
compartment(區間) and 2.0 M NaCl along with exceed AgCl(s) in the left
compartment.  The Ksp of AgCl = 2.0 X 10-10   Calculate the cell voltage (ε).

2.
which of the following period 3 chlorides would be expected to have the
highest melting point ?
MgCl2  AlCl3  SiCl4  PCl3  SCl2

3.
which of following ions could exist in only the high spin state in an
octahedral  complex?
Cr2+ Mn4+ Fe3+ Co3+ Ni2+

4.
Name the three different classes (type) of hydride , and list some of their
important characteristics .

5.
which one have the smallest hydration(水合) energy(絕對值)?
F- Cl- Br- I-  or all the same


以上5題可以幫忙解答嗎?  感謝

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◆ From: 118.161.4.107
※ 編輯: avantime        來自: 118.161.4.107        (02/10 22:32)
→ foxguy:第一題我也想知道..NaCl+AgCl可以當陽極嗎QQ?
→ foxguy:Q2 四氯化矽熔點最高，我猜是因為網狀晶格和對稱的關係....
→ foxguy:Q3 鐵三價的價電子3d5為HS
→ foxguy:Q5 I-的水合能最小，水合能正比於價數，反比於離子半徑
→ foxguy:有錯請幫我指正= =
→ yutsao:第一題應該是用Nernst eq吧
→ giwee:Q2 是MgCl2 離子性最強
推 nr:Q2= MgCl2 Q3= 電子算一算 看強場弱場就排出來了
→ nr:Q4 Ionic hydrides, Covalent hydrides,Interstitial hydrides
→ nr:google一下就有答案了
→ avantime:關於第一題 我也知道是N~Eq 但是不會解 可以幫忙嗎?
→ avantime:關於其他4題感謝各位熱心大大解惑
→ avantime:另外  就是關於complex ion 強弱場 高低自旋那不太懂
→ avantime:可以請大大對Q3更詳細的解說嗎  謝謝
第一題想到了 E=Eo+0.0591/1*logQ Q=(Ksp/2M)/1M 應該是這樣吧?有錯請指正
但第3題我看普化課本2本真的都看不懂答案怎做
八面體配位數要6 高自旋的配位基是弱場  但要怎麼從中心離子看出配位數 強弱場?
※ 編輯: avantime        來自: 114.43.11.77         (02/11 11:34)