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> 103年 - 103 淡江大學 轉學考 普通化學#53298
103年 - 103 淡江大學 轉學考 普通化學#53298
科目：
轉學考-普通化學 |
年份：
103年 |
選擇題數：
0 |
申論題數：
9
試卷資訊
所屬科目：
轉學考-普通化學
選擇題 (0)
申論題 (9)
1. How can both n-type and p-type semiconductors be produced from pure silicon, respectively? Explain how n-type and p-type semiconductors increase electrical conductivity over that of pure silicon?
2. At elevated temperatures, NaClC
3
decomposes to produce sodium chloride and oxygen gas. A 0.8765 g sample of impure NaClO
3
was heated until the production of oxygen gas ceased. The O
2
gas collected over water occupied 57.2 mL at a temperature of 22°C and a pressure of 734 torr. Calculate the mass percent of NaClC
3
in the original sample. (Na = 22.99, Cl = 35.45, O = 16.00. At 22°C the vapor pressure of water is 19.8 torr)
3. When the supply of oxygen is limited, iron metal reacts with oxygen to produce a mixture of FeO and Fe
2
C
3
. In a certain experiment, 40.00 g iron metal was reacted with 22.40 g oxygen. After the experiment, the iron was totally consumed, and 6.48 g O
2
gas remained. Calculate the mounts of FeO and Fe
2
O
3
formed in this experiment. (Fe = 55.85)
4. Draw all the structural and geometrical (cis-trans) isomers of C
3
H
5
CI.
(a) sodium peroxide
(b) ammonia
(c) sodium hydrogen carbonate
(d) sodium hypochlorite
(e) potassium bromate
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