推 YoAndHide:很謝謝你!! 61.230.110.46 07/12 13:18
推 inw96284:不會 ~~ 125.225.79.217 07/12 14:16
推 pcboy0831:第6題可能是在考amphoteric 125.232.11.236 07/12 21:04
→ pcboy0831:Sn Be Cr Al Pb Zn Ga,沒有Fe 125.232.11.236 07/12 21:06
※ 引述《YoAndHide (Ouch  椁jjjjjjjjj)》之銘言：
: 如果有誤請不客氣更正,謝謝!
: 94
: 2. Pure rotational of a molecule occur in what region of electromagnetic
: radiation? a.microwave b. x-ray c. infrared d. ultraviolet e. r-ray
: 6. Which one of the following compounds is not soluble in a strong basic
: solution? a. BeO b. ZnO c. Al2O3 d. Fe2O3 e. Cr2O3
: 這個要怎麼判斷阿 這種題型完全沒辦法T_T
: 無法溶於強鹼溶液,所以選鹼性最強的
週期表愈下面,愈左邊鹼性愈強
選 a. BeO
另外請問是酸性鹽可溶於鹼 鹼可融於酸是嗎?
: 我不是很確定,不過應該是
因為酸和酸不反應,鹼和鹼不反應,
7. Which one of the following compounds is most soluble in water?
: a. PbCl2 b. Pb(ClO4)2 c.Pb(OH)2 d.PbSO4 e. PbS
依照沉澱表來看
a.難溶
Cl-,Br-,I-與陽離子生成化合物大部分可溶
但與 Ag+,Cu+,Tl+,Pb+,Hg2+2 不溶 (PbCl2只溶於熱水)
b.可溶
c.難溶
OH-與陽離子形成化合物難溶
只與NH4+,H+,IA+,Sr2+,Ba2+,Ca2+溶
d.難溶
SO42-與陽離子形成化合物大部分可溶
只與Ca2+,Sr2+,Ba2+,Pb2+,Hg2+2溶
e.難溶
S2-與陽離子產生化合物難溶
只與NH4+,H+ ,IA+,ΠA2+可溶 所以選 b.
: 12.Which one of the following quantities is largest for 1mol of given subtance
: a. enthalpy of fusion b.enthalpy of vaporization c.enthalpy of sublimation
: d. heat capacity of solid e. heat capacity of liqid
: ΔS=ΔH/T ΔS愈大,ΔH就愈大
選 c.昇華熱的ΔS是最大的,
a.fusion熔化由固體變液體ΔS是負值
b.蒸發(由液體變氣體)的ΔS < 昇華(固體變氣體)的ΔS
二
: 3 A 0.02M solution of H2SO4 has an osmotic pressure of 1.125 atm at 25度C
: Find Ka for HSO4-
: 8.Represent the structure of the condensation polymer made from
: 2-hydroxypropanoic acid
: 95.
: 9. The two salts AgX have very silmilar solubilities in water.
: The salt AgX is much more soluble in acid than is AgY
: What can be said about the relative strengths of the acids HX and HY?
: a. nothing b. HY is strongerthan HX c. HX is stronger then HY
: d. The acids have equal strengths.
: 選 b. AgX比AgY易溶於酸,表示AgX的鹼性較強,酸性較弱
18. For the process X-(g) -> X-(aq) select the ion with the most negative
: value of deltaH
: a. F- b. Cl- c. Br- d. I- e.At-
選 a. 氣體->液體 是水合能(本身是負值) ΔH<0
同一族元素裡,同樣是九個質子吸引十個電子
原子半徑愈小(a<b<c<d),電荷愈大,水合能愈大,數值負的愈多
: 19. The color of a transition metal complex results from
: a. bending vibrations b.stretching vibrations c.transition of an electron
: between d orbitals
: d. transition of an electron between an s and a p orbital
: e. nuclear magnetic resonance
: 二-4
: 為什麼Co(NH3)6 3+ 是逆磁 而Fe(H2O)6 3+是順磁呢?
: 還有請問rate law的order有可能是負的嗎 因為我算一題是-1 ....
: 另外請問有人有寫C卷的想對答案嗎~? 雖然都查過了 還是對一下比較安心
: 謝謝!
其他的我不太會,謝謝
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