五國民華
買二第張五第
日四廿月二十年卯発簡
WAH KIU YAT PO
報 日
教育報告書建議
設自動統計圖表
WP
華僑文
2 mm) al 3 lakh keben. Imm nħa mag
化
!我願意尚愛好督查的望者推荐這次展餮。
選批作品,可能是集古賚麼大義行的國品謖際中裊題實股 得先說愛育,牲了若干優秀的國壹和奮法作品。在秒被离足之餘
六、七南天,共古莖很大會堂八樓畢行在做辔莫展,幸
「升中指南 英文科教材
今日在麗的呼棍播出
時間:
上午十時半至十時三刻 下午六時正至六時一刻
ENGLISH LESSON 26
THE CONJUNCTION
i
action is a "word"used to join words or sentences together.
He is clever and diligent.
(The conjunction 'and' joins two words 'clever' and 'diligent" together.
He is very tail but his brother is very short,
The conjunction bur joins two sentences together,
They are 'He is very tall.' 'His brother is very short.")
USES OF SOME COMMON CONJUNCTIONS
Jane and Mary"go to school every day?
Jana and Mary are good friends.
It should be noticed that when we use the conjuncilor 'and to join 2, or more
dubiects together in and entance, the veris must be in he plural form.)
FORE
*.g. He is poor but honest,
He wana co go but his father does not allow it,
.
The conjunction" if" has the meaning of 'under a certain circumstancs".
If you don't work hard, you will fail,
B.
f should work hard if I were you,
Ha had finished his work before he went ́cut to play. They will reach my home before the sun sets..
TOR* as a conjunction has the meaning of because.
He was punished by the teacher for he was late,
+
He ran away, for he was afraid.
come into the room after he has left,
After I has finished my letter. I pur (`ints"the"letter-box-
I wait till he arrivesì
He works till he bas finished the work,
Ruu quickly or you will miss the train.
Speak loudly,or.1. cannot bear. vow.
UGH......YET
When
we use the compound conjunction 'thougn...you in any sentence, I wo}
Aually have two different and opposite meanings in the sentence,
of Though he ra old, yet he is very healthy
Though he feels very painful, yet he does not ̋ery,
metimes the word 'yer' is omitted, and we just use the conjunction-though 6,g. She was cot airaid, though she tad to die.
The Conjunction since" has two" meanings.
It
may mean 'from the time when
TH
g. I have studied in this school since was a little girl may mean "because"
*g. I cannot go to school since I'am ill
EXERCISE 26
the blanks with conuncons
Be washes his hand
He will work : YOU bome.
They will not gooar unudarse: Will I.
It is a long time.
George
be eats' anything.
i saw you,
Peter are brothers.
Witwork hard ·.. you will fail.
it rains, we shall cancel our plenie.
.was very angy a
he had heard the news.
ach of the bracket underline the word which gives the right answer:
He had go: (many, some, any, several) bread.
by This is the (old, older, oldesc, cidest) temple in Hong Kong.
He is Lan, s; the, one) European.
Every man in the village (is, are, am, were,) praberis.
4. He is taller than (I, me, mine)
in the blanks with WHO',- "WHATƒWHICH","THAT',~ 'WHOM' for
WHOSE
know the man
}
.......y you`rust'anol to.
by Warte la the person eave you tast year?
She 15 B} WOIDAI =>=ezentancugonaťhen fold tħla ogg..
Ay Un-vot #20W bas happened!
b.vof i.' for
speich
b. st.
Decemb-z
b. breadth
b. tunich,
~~fcame late.
Exerries124› Answary
d.lin 2.2.at FE with
en for
te stupidity
Cauta
g.sol.
'b., of)
d. of
d.laughter
* politeness
0.1 camel
金文中學學生熱烈研究香港早期史
,不必爲呀明之宦官 隔。 對一切建颧鸪極虛心 家謝你陪,亦窖 唐氏篙一耿育之人,新任籣乃傑夫雄 校長李疮波議員邪:避有一番然隔。 天主教倍聖中華官長約達2億人,預 水有助於私校文展示記取「甘棠」之 ,召開證監會議,以大飯店于以候, 宜,亦勇按約修改 將於本月八日下午傑 【設有預定計劃,至於,盡之編配 , 薛敎育則例之不適 殊材質狀。因此被等
人推許 氏任內成材。王氏根鶯待別對於 於下月制正式接薪, 體邽廚長任內對私校 皖有熱名激宵三利益之協助不说餘力 退休,新長簡乃號將|職會正常王料,均 【意,為時參加之各家
九六四年度
海
「激增,情良好。
獅子營聯歡大會 及同學應注意集隊時間 六特訊) 淞中,文大學崇基社會學及次月≠日,下 定九日起舉行 各校教授 釬][娒至六時。灞生 紅會工作學系、新亞學期定本月廿
|考試分爲研究行 第一次二月十日,第
「九時至十二時半,F 【每日辦公時間上午 雲十五日休假外, 星期日及本月十二 坐,分爲三處報名,
本學期期終試已
一
研究香港早期史
五期星
三催
日七月二年四六九一曆公年三十五國民中
取雪參加商業做旅7,我將千預。
感復惑,此爲香 全部學生,會資格 傩校有會瑭五感失落。 子,如冷水池背,至 總館,至於突然取盡 加會勞,方較會現。但底等全離麼子,號德第三院,學生人 ,己不腐僭惚。照息 收學生報之授,為業,平畫面論,出三百人恢復北會第五龔爲第院,九龍 而校方亦由本月份起 而有關當局對盖一,此所措,不無無 已報名參會諧之無 九龍佐敦文大 之匜码畢業生,滿實 超過,以致有沉現今紫园學校之事道全一百五十八,上下門 院上漆,香港懇輔道 笩體驗會考資格班合共出百人,創造西屈地街爲第一院,
指出:教育非其他商 論,一般荜子,一 明教官界人士,今以德而
*金文泰中學學生
影响棧費;同時亦須 假如經過會考而已 麗係,而苦酸啊,致業如何而定, 予取錄,不能因队到 否,湖北本人之學 執照其將爲何,方 的,會選及格 大學前,應舉行入學 之念器,以期會」 人村基體,學生于 賈去寶貴時間與愛凡
可比,不能惠們私 錢完皮北興鐵,有社會系同學合辦 一,無以爲代斯 香港中文大學三學院
(特)金交中學香港早期史講座,昨日爲第二日,坐 吳灞陵專題講海賊之王張保仔
會銀案。二十四日正 骨年營拫行,盼香學
科慈濟米,商管來, 假九龍將軍渙獅子會 — 臨參加之敎授及周煜 式上課。又該校原有
本月九日下午二時半,二十一五 ,至十日下午四楼,土木米,建築系,阿 獅子營聯歡大會,挺活,教系,新聞深 龍會灣來概合舉辦之文科中文家,外交
。楣楣各粱;地點,並指出眞與傅對各酷。謝開於實少門校 斷策,張保仔終於改邪歸正,各酒泡賦亦平定。張保仔的選 出衲度總餐百紕專題那張做仔事件,對賴,卒垛招撫 西聯合武力,指出福打勝校各役之點。碗滿畫政府的對。 亮,控閻郁婚,終发剂,光武力各財。而辦官單與盤敗中
地點之今日情形。營網保任之興起。指出張保仔興起在六大海號 香淡地區灣餓區係。吳氏醫館各網剝離活動故事,並漸出其活 教育司唐露膮月底退休
予海賊活動機會;三人民張界流離失所,挺而走險。早期
杳湖。 (浩〕 綿長,鳥樂遍佈,而選無防糰,二課界對成功,亂日下午脚拳到杳 傑:早期香港區變成世界原因。吳民舉出三要點:一爲簡便行亭,必須於該營越伦急發,均可
跟從之後,所此在訂返回出。但該學伯· 三教育界名流
同致讚美之辭
「國際教育」
利均有意見 李耀波、吳寧頤、王幸 中文 校聯會主
艾:空泰中舉每年會開放日一次,開今年凸擇定四月 左右行,且阳攝時學生方面將有先世早期史研究成證揖云 司唐鳝將於本月底 席吳纛及交枨校
〔
海利豬交辦一下第
經文中學會考試題預習專欄
華僑日報英中會考試題研究委員會主編
Question 6.
化
學
(五)
(continued from the fourth issue)
(a) Standard solution of hydrochloric acid cannot
be prepared by direct weighing as it is very volatile and hard to obtain in a state of high purity. A standard solution of this acid is usuaf- ly made in three steps. First, a solution of the acid of approximate strength or normality is made up. Second, a standard solution of sodium carbon- ate (or exact normality) is prepared. Then in thei last step the acid solution is standardised, by titration against the standard sodium carbonate solution.
!
(
The gram-molecular weight of hydrochloric acid ism (1 + 35.5) 36.5 gm. By definition, this is the Game as its gram-equivalent weight. A decinormal (0.1N) solution therefore contains 3.65 grame of the pure acid in one litre of solution. The con- centrated acid as given by the question is about ten times normal, which means there are 365 gramı of the pure acid contained in one litre of solu- tion. The quantity of the concentrated acid re- quired for making one litre of approximately deci-} normal solution can be calculated to be 10 ml.
3.65
-): since 0.365
1 mL.For the concentrated acid fcontains 0.365 gm.of the pure acid.
a
系
First step. 10 ml, of the concentrated acid is measured out by means of a small graduated cyl- inder and transferred through a clean funnel into a clean one-litre volumetric flask. The cylinder and the funnel are then washed with distilled water and the washings added to the solution, The acid is finally diluted by adding distilled water to the litre mark and thoroughly mixed by shak- ing. This is an approximately decinormal solution of hydrochloric acid, Second step.
Sodium carbonate has been ̈ found"to be the most suitable subatnce for making a stand- ard solution, because in the first place it can be obtained very pure by heating the bicarbonate of sodium, it is not affected by atmospheric air during weighing, and finally the salt, due to hydrolysis in water, can be treated as an alkali for titration of acids if methyl orange is used as indicator. Pure anhydrous sodium carbonate is first prepared by heating about 5 or 6 grams of sodium bicarbonate in a small porcelain cru- cible with a very low Bunsen flame and stirring the powder at frequent intervals. The tempera- ture of the carbonate shoyld be kept under con- trol around 270°C., otherwise some decomposition may occur. The heating should be continued for about half an hour until a constant weight is reached. Then the crucible with its contents is placed in a desiccator for cooling. Now the so- dium carbonate is ready for weighing.
The gram-equivalent weight of sodium carbonate is, by definition, 53 grams, so a decinormal solution contains
53
1.325 grams of 10 x F
pure sodium carbonate dissolved in 250 ml. of solution. A standard decinormal carbonate sol- ution is prepared by weighing out, on a watch glass, exactly 1.325 grams. and dissolving it in some hot distilled water contained in a beaker. The watch-glass is washed with water, from the wash-bottle and the washings allowed to drop into the beaker. Care must be taken that all the powder is made to dissolve completely by stirring, and if necessary, by warming. Next with the aid of a glass rod and a funnel, the
the solution is poured down into a 250-ml.... vol-, ametric flask. Again the beaker, the funnel and the glass rod must all be thoroughly washed so that every particle or every drop of the solution is completely transferred into the flask. The final solution is made up to the mark, with dis- tilled water. To ensure homogeneity, the whole solution is poured out into a large clean dry beaker; and mixed thoroughly Third step. Titration
}
A clean burette is first rinsed twice with small portions of the acid prepared. in step 1 and then filled with the acid through a funnel. Next, the tap should be opened to let a few drops_run_out in order to fill the jet.
下午,
A clean 25-ml pipette is
鞠
九龍某英文書院學生
不過長時間 一,食物富,節目精
全部被取消會考資格
彩,好時遒有一
教育界人士認爲處理過嚴
龙設有一間英文書院 課室所學位,惊勿 應准額定學生會考方合理
情熱合書院校
【聯大定讀設 上學期改名以後
各種獎助學金
first
rinsea
the solution that the pipette is
CWICO
going to cons
及同學非常熱烈參
Witn
tainy LaCa the standard carbonate solution pre-
pared in step II. The rinsing in both cases is to avoid diluting the solution, Now exactly
25 ml of the standard carbonate solution is
drawn up to the mark and allowed to run into a 250-ml conical flask, A few drops of methyl
orange is added as an indicator and the solution at once, turns yellow in colour.
Initial reading is taken from the burette and the acid starts to run down into the conical flask until one drop of the acid turns the yellow colour in the solution to permanent pink. Final reading of the burette is again taken. Two more such titrations are repeated and the average resultis. taken.
Calculation
(Standardisation of app. 0.18 sulphuric acid)
Normality of Na,CO, solution = 0,18 Titration: (Acid in burette; 25 ml..of NaņCOy
solution + methyl orange indicatorj in titration flask)
Average volume of acid used (from burette
reading in three titrations) 22,12. m3 No Eml. acid x Normality of acid
- No. mi. base x Normality of base 22.12 ml acid x Normality of acid
25 ml. Na2CO3 x 0.1N Therefore normalityrof. H_SOL
Question 6. (b).
25 x 0.1
22.12 = 0.113N
Let N be the normality of the diluted acid,,
我 14.6.00.
Then
N
H
N
M ZO
20
14.6.
co. x O. J
0.137
T
Therefore the weight of acid in the original
0.137 x 500
x.36.5 1000
solution
-
www
2.5 grame.
11/ Normality of the diluted acid
0.1378 (step 1)
Let V be the number of cc. of the diluted
acid' required to make up a litre_of_deci- normal strength.
V
V
Question 6.
(c)
11/
0.137
1000
1000 0,1
0.1
0.137
729.9700.
Let N be the normality of sodium hydroxide
solution. 1 您 12.5 算 N
2N
25 cc.
N
Total gram equivalents of pure HC1 container
in the original 50 ml. of N. hydrochloric acid solution - 1 x 50
= 0.05 1000 No. of gram-equivalents of pure HC1 left "over
after the completion of its reaction with
2 x 13 0.288 gm. of the metal =
= 0.026
1000
-
Total gram-equivalents of pure HCl used up in
the reaction 器
0.024 0.05 0.02€
0.024 gm-equivalent of acid
= 0,024 gm-equivalent of hydrogen = 0.024 gram of hydrogen Now 0.288 gm. of the metal displaces 0.024'gn.H, and how many grams of the metal will displace
1 gram of hydrogen?
Let E be the equivalent weight of the metal.
0.288 E
111/
Then
E
12
0.024 1
(being the equivalent weight
of magnesium)
0.024 gm hydrogen » 22,400 x 0.024
V
2
P V
1
T
537.6 cc. H at N.T.P.
2
760
537.6
743 *
273
273 + 13 760 * 337.6 x 286
273 x 741
579 co.
-
器
Therefore the volume of hydrogen evolved when
measured at 741 mm, and 13°C.
579 cor
Since the normality of the sodium hydroxide
solution has already been calculated to be 2N,
therefore the concentration of this solution La 2 X 40 80 grams. NaOH per litre,
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