1991-12-06 — Page 28

華僑日報 All

|中的斯

育教 產地外海 日一初月一十年未辛曆夏

國民華中

-

CD850

CD850

LEVERING MATS • FIDE PHILES VENTATI

SAA7321 - 故此不論分晰力,通透一坭啥呢?

CF Best*K-ZIKE Bitstream chips SAA7321256 NEXS

Philips Bits team Chips CD624 CD834 Philips CD850

,而CD850 比(一)CD 榝通常平嘢冇靚,但同樣以 Philips |殼內少了一塊線路版所造成的空位就是原因?

Radka ToneffENU À

者清麗脫俗、如淡素娥眉-CD624 和CD834 部

Vocal KEX Linda Ronsdal

}

樂壇組合,當年,三

個少年只是伻蓉阿椥

SADNESSJ { MEA CULPA ] - [ THEİ

艷芳出道的一個三人

草蜢-是跟隨梅

·

· TIM FTNN 宣佈離狻 - 並準備推出他的 紅後,不知如何調適自己 - 沉迷於藥物及酒精 升

FALL AF YOUR FEET J 在BILBOARD都路上 GO GCY'S J 主唱的BELINDA - 食在當年一起而

於CROWDED HOUSE 推出大 中,結果不但自己積林麥糕,名操一時的「到耳熟能詳,而ENIGMA將推出一軟立雄圖案 個人大碟。TIM

GO GOS」也在不白愛的結果下分道揚鑣,成1-除了收錄MCMXC I碟內歌曲外,加插 碟WOODFACE時正式加入,爲他們炮製了多

ENIGMA 的一曲「 SADNESS 」大家已影

X X X

(2)

(出刊五期星逢 )

SOUTH DAKOTA

Historic 9000' 12Br, 5Ba Beauty in Burke! ✨ Sacrifice. Asking $175,000. P.P. B & B? Bd & Care? One of the largest homes in S.D. Will negotiate. Write or call:

Anthony Murphy, 3 Cable Drive, Cathedral City, Calif. 92234 619/324-3217

(BUS & HOME - COLUMBUS, GA - *BUS

State-of-art Auto Collision Repair. Est 1918. In city. Fac 3yrs na! 11Ksf, AC. $1.6M. "HOME-NF $ city. 3Ksf trad fam on Kac lake! 3BR 2.5BA. DR/Florida rm. fum /kitch w/nu apol. Jacuzzi in MBA,Walk-in cists, atoru mi, e scmd prehs yazebo, dack. Landscpd. $495K. BOTH BUS&HOME $2M. (404) 323-3111

SAN MATEO, CALIFORNIA

5 BR, 2 1/2 BA HOME, HAS FORMAL ' DINING RM. LIVING RM. POTENTIAL IN-LAW, BACK LANDSCAPED, GREAT SAN MATEO LOCATION, BY OWNER. $355,000, (BUS) 415-593-2365, (HOME) 435-574- 1097, FAX 415-593-3627.

PAIRFAX CO., VA - CHARMING CAPE COD FAM HM ON 1/2AC $304,500 - 2BR/IBA, LR w/irplc & beatakator, PDR, mod kitch w/nu oppi, pantry, Den w/lots of lite & blt-in bi sklys "Esment/work area, deck, patio, angl car gar. Nr schools, shops, fake. OPEN HSE 127 & 8 11am-4pm. Richard Mayfield 703-578-4335

SAN FRANCISCO, CALIFORNIA 3 SR, 2 BA, 1700 S/F. BEST SAN { LEANDRO NEIGHBORHOOD.

LANDSCAPED, FENCED, DINING RM, LIVING RM, FULL KITCH, FIREPLACES, HARDWOOD FLRS. BY OWNER $270,000. CLOSE TO GOLF COURSE 413-638-8944, FAX 415-638-4942.

RICHMOND, VIRGINIA GOOCHLAND HORSE FARM 25,000sf barn w/indoor exercising arena. 3000sf brick bam, 15 pastured neres & cross-fencing. Brick home w/pool & pond. Most prestigious arca Richmond. $450,000. Blaine Berryhill. PH: (804)556-4178.

1947 JAGUAR SPORTS SALOON THIS 1947 1,3-LITER, JAGUAR - SPORTS SALOON IS 2 TONE SLATE & DOVE GRAY, INTERIOR IS OF OXBLOOD CONNOLLY HIDES, ALL INTERIOR WOOD IS LACQUERED PHILIPPINE MAHOGANY.

BIKING, COMPLETE THOROUGH & AUTHENTIC RESTORATION, ABSOLUTELY BEAUTIFUL $79,900. DOYLE HAYT, 708-487-1441, FAX 708-526-6502

MASSACHUSETTS, ABINGTON FAMILY HOME, 7 BR, S BA, ELECT HEAT 26 ACRES W/PARKING SPACES FOR 7 CARS. ATTIC UNFIN BSMNT. INSULATED, NEAR SCHOOLS, SHOPPING, BUS LINE, VERY GOOD NEIGHBORHOOD, CONVENIENT LOCATION, GOLF NEARBY. 1. CALL FOR MORE DETAILS, ASKING

$269,000, 617-659-7743.

CALIFORNIA * LOS ANGELES ARÉA WOODLAND HILLS/TOPANGA

3 new magnificent custom estate homes, gated. Mediterranean style, 4 BR, 3.5BA. 4000+ sq ft. Nestled against hillside, end of cul-de-sac for great privacy. Canyon views. 3 miles to Ventura Freeway, FROM $850.000.- OWNER/AGENT. (213)443-1738

FLORIDA, OLD PONTEVEDRA CONDO OCEANFRONT 2,250 S/F 3 BR. 2 1/2 BA, 14 CATHEDRAL CEILINGS, CARPET THRU-OUT,

CLOSE TO SCHOOLS, GOLF & SHOPPING, WRAP-AROUND DECK SECURITY SERVICE, GARAGE. FURNISHED NEGOTIABLE, $405.000, CALL 904-285-0882 OR 904-241-0032,

*FAX 904-241-0010..

FLORIDA KEYS - TROPICAL CLIMATE SPORTS FISHING & DIVE' MARINA, | LUXURY LIVING. QUARTERS ON SITE WOCEAN VIEW. EXCELLENT LOCATION. WAGOOD CASH FLOW, ERLÍSS OVER $1M AVAILABLE" POR વા વાયદા COMMERCE STORE & LUXURY

KINEN CLEAN FRONT ACRES, SAND KAGE. 3 BR, 2 BA W/FAM

BEST FURNACE. $1,100,000..

OTHER "COMMYL. A RESIDENTIAL PROPERTIES AVAILABLE

BARL HUNEKE, CENTURY 21 HEART OF THE KEYS MARATHON, FL. 305-743- 3377, FAX 305-743-4324.

CAMANO ISLAND, WASHINGTON DRIVE ONTO ISLAND, 4. BR, 4 BA $575,000 5 BR. 4 BA. $405,000. STATE PARK W/GREAT FISHING, BOATING, CLAMMING, CRABBING BEACHES & MORE FAX 206-338-3694, CALL PATTIE · AT 206-742-7800. OR ACCESS DATARESE 00-811-469-0956.

USA BUSINESS OPPORTUNITY INVESTORS WANTED

דה

Extremely profitable Airline Market Unique in it's Strategies and Services Minimum $ risk.TAKE ADVANTAGE OF USA IMMIGRATION LAW. 415-259-1378 Fax 415-259-1379 USA

USA SUNBELT

CONFERENCE CENTER. MIDWAY Phx-Tucson, Az Jet 1-8 & 1-10 10 Bidgs, Al Ameniles Turkey $1.4M Motivated seller PHONE: 602-486-7979 FAX: 802-423-0916

DANAVUUDUDUDUDV

BAHAMAS

EKHT EXTENDED (UP TO 5 MILES) BEACHFRONT PROPERTIES AVAILABLE RANGING IN PRICE

· FROM 5350,000 TO $5,000,000. CONTACT SEASIDE REAL ESTATE, PO BOX EX2934, EXUMA, BAHAMAS. PH 809-336 2091, FAX 809-336-2092 OR ACCES INTERASIAN DATABASE AT 002-1-213-469. 0956 FOR MORE INFO,

HS 125-1A FOR SALE. This truly elegant aircraft combines a distinctive laser paint scheme with a spacious interior to provide the travel ( comfort the cabin amenities include seating for 7; custom entertainment. water, heated ligula. contamerss direct dial Flitephone, and aft lavarorty. The Airesearch: APU provides heating and cooling on the ground and is wired for C V. R. This aircraft also includes color radar, loran, and chrome gear, All Xxy and inspections are current, $530,000, Aircraft can be seen at Cypress Aviation Lekeland, Florida Contact: Rusty Crossland, (804) 664-6003 or Chuck Pearsonty: (615) 842-3966. 904-684-6019

1992 中學會考預習專欄

明德出版社

MILL & DALE PRESS

Chemistry (9)

Unit 5: (Continued)

5.

Volumetic Analysis

R. LAIN

5.1 A standard solution of a substance

is a solution of accurately known concentration.

5.2 The titration is a process during which the solution of one reactant is run from a burette into a knoWN volume, e.g, 25.0 cm3 of the solution of the other reactant until the reaction is just complete.

5.3 The end-point or equivalence point

of

titration denotes

that equivalent numbers of moles of the reactants have been reacted, i.e. the reaction is just completed.

5.4 The end-point of titration can be detected in a number of different ways such as using an indicator, measuring the pH values with a pl meter, measuring the temperature changes, etc.

Question 9

(a) What

volume of

0.05M H2504 is required to neutralize completely 25 cm of 0.1M Naoti?

(b) 20,0 cm3 of nydrochloric acid

neutralizes 25.0 cm2

of 0.04 M sodium carbonate solution. What is its molarity?

6. Thermometric Titration

The essential

neutralization is

reaction

in

H*(ay) + OH(aq) --- H2ote]

which is exothermic, thus resulting

in a rise in the temperature of the

new

報日僑華

五期星日六月二十( 一九九一)年十八國民華中( 28 )

刊特民移資投產地外海

USA SOUTHERN CALIFORNIA Beautiful

Tony

Roma's Restaurant 5,800 sq. ft Approx, $2 Price Million annual volume. $795,000, building also for sale. Contact Jack: 518-840-6340 Fax 818-840-6212 USA

NEWPORT BEACH, CALIFORNIA BRIGHT & CHEERY 3 BR. 2 BA + POWDER RM, FPLC, PATIOS, 2 CAR GARAGE. EASY- CARE PROFESSIONAL LANDSCAPING. COMMUNITY POOL & SPA. BASKET BALL. CLOSE TO 3 COUNTRY CLUBS FOR GOLF & TENNIS. $450,000. DISCOUNT FOR CASH. 714-854-965).

TARZANA, CALIFORNIA Best price! Prime loc. 3: BR/2 BA gated upgraded-open fir plan. New European style kich tile. & marble thru-out Contemp colours. $1 million homes across street. New Ladsepe shows like a dream model. Every room picture perfect! Such a deal. Hurry! $375K OWN/BKR (818)609-1309,

CALIFORNIA * TEMECULA VALLEY * MAGNIFICENT, GATED EQUESTRIAL ESTATE New cam sprawling 11,000sf res on 9.9 ac 10 stall stable, fenced Pastures, spec Rockscape pool/spe APPRAISED $3.8M SACRIFICE $2.995.000 FOR $SERIOUS OFFER/FAST ESCROW. R.T. OR LOIS GODBOLD OWNRS/BLDRS 818-349-6103/818-248- 3329/FAX818-249 3786.

SO CALIFORNIA 240

ACRE EQUESTRIAN ESTATE Custm 10,000sf luxury residence +3 add'l-hames. Compli breeder/trainer facilities, bars, fibar track Lake, watalipool, lush landsep, fruit orchards. All sec'ty fenced. Nr golf/racing/wineries. Poss, to split ac for devipat Brochure/video, Peggy Queny REMAX (714)676-1122/FAX (714;699-3768.

19% CAPITAL STOCK MEETS U.S.A. VISA REQUIREMENTS SALES IN U.S. & FOREIGN COUNTRIES LOCATED CALDWELL, IDAHO, U.S. COMPANY EMPLOYS 89.90 RETURNS. NET 1.7 MILLION, CONTACT PHILLIS RED |001-1-208-896-4755 OR WRITE TO PO. BOX

604, MARSHING, ID 83639 USA.

CAPE GOD, MASSACHUSETTS $6 ROOM HOUŠI. 2 STORIES IN CAPE COD

CAR GARAGE BREEZEWAY 3 · ROOM) { APARTMENT DIVER GARAGE 144 ACRE, NEW STORAGE SHEIK WALK TO BEACH, CLOSE TO GOLF COURSE TENNIS COURT, SWIMMING. BY OWNER, $300,000. 508-432-2068.

FORSALE Working Interests in forty producing Western Kansas oil and gas walls. Visa. Advantage $5,000,000. Continental Energy Mr. Smith 316/276-8710 - Fax: 316-276-4153 USA

FAMILY FARM CORP. CENTRAL ILLINOIS 700 ACRES

CATTLE TILLABLE WITH OPERATION. $1.2 MILLION IN TAX CREDITS. ASKING $3 MILLION TOTAL MANAGEMENT IN PEACE AND WILLING TO STAY ON, QUALIFIES FOR US VISA. ASK FOR BRIAN OR JIS AT 309- 249-3672, FAX 309-367-2324,

reaction mixture. When an acid is! added slowly into a given amount of an alkali in a reaction vessel, the temperature of the mixture will rise gradually until the alkali present is totally reacted If the temperature of the mixture plotted against the volume of the acid added, a graph as shown below is obtained.

Temperature of the

#ixture/*G

Volume of acto addeu/cn

At the beginning, the alkali

is in excess and the acid added is

AGIN COURT, ONTARIO, CANADA LARGE 2 STOREY BRICK, 100 FT. LOT, 4 i BEDROOMS, 2-4 PIECE BATHS. MAIN Í FLOOR, DFN, LOADS OF STORAGE I F SPACE, LARGE LAUNDRY. SEWING! ROOM, PARTIALLY FINISHED IN-LAW ! APARTMENT. $284,000, 416-292-8528. !NO AGENTS PLEASE!

VIRGINIA, TYSONS CORNER CONVIENT SHOPPING MALLS SCHOOLS & METRO.

15 MIN TO WASHINGTON D.C. LARGE TOWN- HOUSE, 3+ BEDROOMS, 4 BATHS, COUNTRY CLUB CLOSE BY. CALL JACK 001-1-703-841-1294 OR FAX 001-1-703-841-0785.

HILO-HAWAII

25TORY ON 1 ACRE IST FÜR 3RM APT, WORK RM, UTIL RM. 2ND FLR - 2 DR, KITCH, DIN RM, LIVING RM, 2 BA. LOFT-2 BR, TOTAL 2,900 S/F. LANDSCAPED, 12 FT. DECK IN FRONT, 8 FT. DECK IN REAR, 2 CAR CARPORT NICE SUBDIV. CLOSE TO GOLF COURSE & WATER. $295,000, 1-898-966-4826.

CALIFORNIA " MONTEREY COUNTY · 99Rac compit horse setup. Pano Va. 2400sf shop w/20'x60' apt 2700sf 4 BR/3 BA, fol DR. fam rm w/wet bar, LR w/bean cells, 2. fvpls, gour kitch. 121/2' satelite. Nr ocean, above fog bank. Lg pond w/fish/koi, le aviary, Irrig sys for row crops. By ownr. $1,250,000 408- 726-3404/FAX 408-726-1334.

FOR SALE BY OWNER

4 BEDROOM ANTEBELLUM BRICK HOME W/BANK BARN, DEVELOPED SPRING, 3000 FT. ROAD FRONTAGE 2 TRACTS TOTALLING 77 ACRES $346,500, OR 56 AC TRACT WIMPROVEMENTS $300,000. FISHING & GOLF NEARBY, NEAR WASHINGTON DC. IN. SHENANDOAH VÄLLEY. 303-433-8062, LEAVE A MESSAGE.

WASHINGTON * SEATTLE AREA “ PUGET SOUND 70′ sandy driftwood i beach, no bank, at Indianola. Southern exposure. Dyer 180 view of Cascades, Mt Rainier, Seattle, shipping lanes. 2800sf 3BR/2+BA lum wage gourmet Kitchen, deck, hot tub. First time on market. By Owner. $464,000 (206) 3994705

SANTA ROSA, CALIFORNIA -. Awesome oppty. Oakmont Adult Comm. 3BR/2.5BA, over-looking Kenwood w/views of Mtns. Extra's galore. No bruker fee. $496,500. PH: (707) 539 - 3661

VANCOUVER, BC, CANADA WOODCROFT ESTATES IN PEMBERTON BLDG. 2 BR, 1 1/2 BA, 30, EAST CRNR, 835 S/F W/350 S/F WRAP AROUND BALC. 270 DEGREE VIEW OF BRDG, MNINS, INLET, CITY VIEW. HAS ALL AMENITIES, POOL, SAUNA, JACUZZI, GAME BAL WEIGHT RMVAPPLS SEWLY DECORATED. CALL MR. PRITZ 604-688-7209.

$2,000,000 NEEDED BY AMERICAN COMPANY | for up to

5 years. Excellent Return! Secured. Other Incentives. For details: Fax 003-856- 1992 in USA or write to: A.E.Largin, TDH Inc., P.O.Box 818, Pittsburg, Texas 75686 USA

Question 11

FERRARI 303

GTS 1984. RED EXT., CREAM LTHR INTERIOR. 5 SPD., TARGA TOP & RAG TOP. PWR BRAKES, DOOR LOCKS, WINDOWS, MIRRORS, ANTENNA. ALPINE STEREO. MICHELLIN TIRES, A/C, GARAGED, ALL RECORDS. NON- SMOKERS CAR EXCELLENT CONDITION. 18K MILES. $55,000, 409-835-5011, FAX 409-835-5177.

LOWELL MASSACHUSETTS MULTIPLE FAMILY 3 UR & 2 BR, 1 DA, GARAGE. IST. LVL: LIVING RM, KITCH, MSTR BR, I ADD'L BR, 1 BA, LAUNDRY RM. 2ND LVL: LIVING RM, KITCH, MSTR BR, 2 ADD'L BR 1 BA, LAUNDRY RM, ATTIC, FPL

NEAR HWYS. ASKING $249,900. CALL JOANNE SOB-454-5023.

INVESTORS WANTED FILMS-MOVIES-PRODUCTIONS, LOOK TO

· 2M+ THE INTERNATIONAL USA CO, LOOKS. FOR FOREIGN INVESTMENT TO CO-OP OUR FILMS OR INVESTMENT INTO DEVELOPMENT OR PRODUCTION, TEL 212-242-9021, FAX 212-675-5453 USA ICP INTERNATIONAL, CASTING PRODUCTIONS.

MINI RANGH ADJOINS CLEVELAND NATIONAL FOREST-- A NICE B ACRES - WITH 3. BEDROOMS, 2 BATHS. PLUS OUTBUILDINGS, BY OWNER - NO AGENTS. PRICED UNDER MARKET AT $245,000 (619) 445-9367

OCALA, FLORIDA INDIAN HILL FARM* Beaut 5000sf hum, 146ac working thoroughbred borse farm. 20-stall broodmare barn w/liv girs. 16stall bam, 36stall training bam w/1/2 mi training trk, 2 20-stall tumovi bars, hay bam, main shed. Brochure. $2,200,000 HILMER C.SCHMIDT 904-622-6615 12191 MAGNOLIA AVE, OCALA, FLA. 32670.

NORTHERN CALIFORNIA, USA REDWOOD FOREST, EXECUTIVE HILL-TOP, VIEW OF SONOMA COUNTY. 61 ACRES OF WOODED SECLUSION. READY TO BUILD. 17 MINUTES TO FREEWAY. OWNER: $450,000, 707-887-9324.

BY

VACANT SANTA BARBARA, CA, - |CORNER LOT $225,000 - Rapidēmijal &

Commercial Plans for 2000sf house w/2 cax. gange. 1500sf comm'l shop are Realf to build. Country atmosphere on residential street. Ne shopping mall, nifes, to dean, & mountain views. Jessie Alde (805) 682-8040 or ans mach. (805) 369 - 2232.

NORTH SAN DIEGO COUNTY, CALIFORNIA

Fairway home and couity club membership FOR SALE. Scenic 18 hole golf coute and 2 tennis courts. Mountain & valley views. Ideal cllaste. 13 miles to Pacific ocean. Single level detached home. 25years m 1800 sq ft 2 bedroom, 2 bath, den & marel $397,000. BY OWNER (619) 726-2345

5 cm3 of a 0.05 M solution of a metallic chloride is added into various volumes

silver nitrate of 0.1 M solution. The mass of silver chloride precipitated in each case is determined and plotted against the volume of silver nitrate solution added

Nass of AgCF ppt.

7 8 9 10 11 12 13 14 15 Volume of 0.1 H AgNO, solution

added/cm1

(a) Give the ionic equation of the

precipitation reaction.

at once neutralized, giving out! (6) Determine from the graph the volume heat and

hence causing the temperature of the mixture to rise until V cm3 of the acid has been added. At this point, the temperature of the mixture is the highest. Beyond this volume, any further addition of the acid will make the temperature to drop for two reasons: firstly, there is no more heat produced as there is no more neutralization taking place, and secondly, the acid added is at a lower temperature than the mixture and hence lowers the temperature of the mixture. The volume. V cm3. denotes the end- point, as it gives the volume of acid required to neutralize the alkali originally present.

of 0.1 M AgNO3 required to precipitate all the chloride ions?

(c) Calculate the number of moles of chloride ions in 5 cm3 of 0.05 M metallic chloride solution?

(d) How many moles of chloride ions are there in one wole of the metallic chloride?

A similar graph would be obtained if adding an alkali to a given amount of an acid in а reaction vessel.

The process of obtaining the end-point by measuring the temperature changes during reaction is known as thermometric titration.

Question 10

a

4.05 g of hydrated sodium carbonate (Na_CO*xH20) was dissolved in water and the solution was made up to 250 cm3. Using methyl orange as the indicator, 25 cm3 of the solution required 30 cm3 of 0.05 M H2SO4 for neutralization. Find the value of x in the chemical formula.

(e) If there are 1 mol of metal ions in 1 mol of metallic chloride, what would be the tonic charge on the metal ion?

Question 12

25.0 cm3 of potassium hydroxide solution and a thermometer were placed in a polystyrene beaker, The temperature of the solution was noted. Into the beaker 0.5 M hydrochloric acid was added, 5 cm at a time, and the temperature of the mixture after each addition was noted. The results obtained were tabulated as below.

(a) Plot the temperature of the mixture against the volume of 0.5 M HOT added.

(b) Read froe the graph the most probable volume of 0,5 M HCT required to neutralize 25 cm of KOH,

(c) What is the concentration of the

potassium hydroxide solution?

Solution to 0.9

(a) 2NaOH + H2SO4

2 mol 1 mol

A K

#32504+2H20

USA

FEATURE FILM Independent film production company needs investor to finance $5 Million feature film in development. Major stars, unlimited upside potential Investor Immigrant Visa, Cliff Pulliam, producer Phone/Fax 310-452-3294.

NORTHERN CALIFORNIA *SIERRA FOOTHILLS Developers 17 residential lots ready for final nao. Water; sewer. Sierra and Sacremento valley Views. Approx 25 mi to.Sacremento/70 mi to beautiful Lake Tahoe Nr airport, golf courses, planned major shopping mall, Great opportunity! $750,000. OWNER/BRÖKER (916) 677-8315

LAKEFRONT PROPERTY LAKE TAHOE CALIFORNIA. TAHOE KEYS, EXCELLENT INVESTMENT, UNIQUE RETURNS, * RECREATIONAL LIFESTYLES, WORLD CLASS F SKIING, GOLF, TENNIS, IN BEAUTIFUL LAKE TAHOE WE CAN HELP YOU FIND THE - QUALITY HOME YOU'RE LOOKING FOR. M&M

REALTY, 916-341-6820, FAX 916-541-1379.

བཔ་ FLORIDA

· MIMI PELLET, YOUR FRENCH CONNECTION (SE PARLE FRANCAIS) WILL HELP YOU BUY A HOUSE CONDO IN SARASOTA, SIESTA KEY, LONGBOAT KEY, FLORIDA, GOLF, FISH, SAIL.

CALL TAYLOR & ? ABUNDANT WILDLIFE

ASSOCIATES AT 843-388-4457, 813-924-4208, FAX 813-388-2583,

SAN FRANCISCO, CALIFORNIA Newly constructed condominiums. Centrally located in the heart of S.F. Views, fireplaces, valet parking, flower- filled ctyds. (964-1730sf). 1,2.&3 bdrms. $250-630,000. PH: 415-923- 1776. FAX: 415-923-1756.

MASSACHUSETTS, BROCKTON

WASHINGTON D.C. COLONIAL 4 BR, 2 1/2 BA, WOODED, FULL FAT- IN KITCH, 1/3 AC, 2400 S/F W/LAKE VIEW, DECK, CLOSE TO GOLF COURSE, TENNIS & POOL ON CUL-DE-SAC, CLOSE TO GOOD SCHOOLS SHOPPING. OWNER TRANSFERRING. ASKING $339,000, 301-540- 8718, FAX 301-948-5094, VIDEO ON REQUEST.

SOUTHERN CALIFORNIA BY OWNER. OVERLOOKING GOLF COURSE & MOUNTAINS, ELEGANT 4 BEDROOM, 3 BATH-2828 S/F HOUSE, LIBRARY, CLOSE FOR GOLF

CUL-DE-SAC.

| COURSES, PROFESSIONALLY

LANDSCAPED. ON $295,000. 714-676-6555.

CALIFORNIA "EAST HOLLISTER FOOTHILLS"

BETWEEN MONTEREY & SAN JOSE waccess to Hwy. 156. Beautiful flat 70.a Ay well, SBRAGA home w/basement 3BR house, 7000sf Bam xlut for horse con farming or develooment. (5 sore minimum Appraised $1.2M. Must soll/make offer. (408) 724-6830, fax (408) 761-1748

CANADA, ONTARIO, TORONTO/MISSISAUGA AREA FARMLAND CAN GROW ANY- ⚫THING, 62 ACRE FARM. WITH ˆ• POND, HYDRO AND WELL, CALL☀

SAM FOR MORE DETAILS: 7-5 E.S.T. 416-670-1178 OR AFTER 5 E.S.T. 416-673-1107.

DELOREAN

MULTIPLE 3 FAMILY HOME, 4 BR, 2 BA ON 683 SILVER STAINLESS STEEL, LOWERED 1,5" ACRES WITH 2 CAR GARAGE, PARKING 4 CARS, FINISHED. BSMNT/OFFICE/ATTIC. VERY GOOD NEIGHBORHOOD, GOOD LOCATION, ASKING $155,000. NEAR SCHOOLS & SHOPPING CENTERS. CALL STEVE AT (EVE) 617-321-1169, (DAYS) 617-721-1028

SAN FRANCISCO, CALIFORNIA 6 UNIT APT: COMPLEX - 1 BR 1 BA SPACIOUS UNITS. EXCELLENT CONDITION. GROSS ANNUAL INCOME: $42,100. GARAGES, GOOD LOCATION. EXCELLENT CONDITION, WELL

BY OWNER MAINTAINED.

ASKING $549,000. 415-564-6780.

FOR SALE BY OWNER WASHINGTON, KENNEWICK AREA, 22 AC RANCH. MUST SILL DUE TO ILLNESS, PLENTY OF WATER, 3 HOMES,

BARNS, 43 STALLS, 3/8 MI TRACK, KORSE POOL, ALL CROSS FENCED & MORE. VIDEO AVAIL. $395,000. BOB ROBERTS FAX 503-641-1926.

GREAT UNVESTMENT OPPORTUNITY RED BLUFF, CALIFORNIA ONLY FULL SERVICE CAR WASH NORTH OF SACRAMENTO TO OREGON BORDER. (LARGE LOT) LARGE DETAIL SHOP, SMALL "C" STORE W/CUSTOMER WAITING AREA: ONLY 5 YEARS OLD SPANISH ADOBE MOTIF. HANNA WASH 24 AND STRIPPER DRYER. $650,000. 916-527-2945

*

EUROPE

We offer (interim) management or set up or handle your current business, Offices) in Holland and Germany, Import/Export distribution. Let us know your challenges. ReSebastian Tel +31.3440. 11426 For 1.3440.22311

Let x cm3 be the volume of H2504 required.

1000

X.0.05

= 0.00005x mol

25

\n{NaOH) reacted = 1000 X 0.1 = 0.0025 mol

n(H2504) 0.00005x

0.0025

Now, (NaOH)

t 0.0025

X 0.00005

= 25

(b) Na¿CO + 2HC) — 2NACT + CO2+ H2O

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n(C1") in 5 cm3 of solution

n(Ag) precipitated n(AgNO3) reacted

= (0.0075)(0,1) = 7.5x10′′ mol

(d) n(metallic chloride) in 5 cm3 of

solution

(0.005) (0.05)

- 2.5 x 10-4 mol

1 mol

2 mol

Let y M be the concentration of HCT.

(e) .

(20) (y) 7251(0.04)

n(HC1) reacted n(Na2CO3) reacted =

(25)(0.04) 20

ус

0.1

Solution to Q.10

M(Na2CO2•xH20) = (106 + 18x) g mol1 n(Na2CO3 xH20) dissolved

4.05

(106 + 18x) mol·

(NaCO3*xH) reacted

4.05

H

25

0.405

-

(106+18x) * 250 = (106+18x) mal n(H2504) reacted = X 0.05

30 1000 = 0.0015 mol

According to the following equation

Na2CO2-XH220+H2S04 - Na2S04+CD2+(x+1)H20

1 mol

1 moi

n(Na2CO3**H20) reacted nil50 reacted

0.405 (106+18x)

+

0.0015

T

0.405

106 + 18x

= 0.0015

x = 9.0

Solution to Q.11

+

(a) Ag*(aq) + C1°(aq) →→→ AgCl(s) (b) Vol, of AgNû, required = 7.5 cul

(c) Ag*(aq) + €1°(aq) ——— Agc][s]

1 mol .. 1105}

2.5 x 10-4

mol of metallic

chloride gives 7.5 x

of C1 on dissolving,

10-4

mol

(C) in 1 mol of metallic chloride

7.5 x 10

-4

2.5 x 10-4

= 3 mo]

1 mol of metallic chloride contains 1 mol of metal ions and 3 mol of chloride ions, 1.e. 1 "formula unit" of the metallic chloride consists of 1 metal ion and 3 chloride ions,

the ionic charge on the metal ion is +3.

Solution to Q.12

(a)

40

20

10 20 30 40. 50 **60*

Volume of 0.5 M HCI added/cm*

(b) Vol. of 0.5 M HC1 required

= 31.0 cm3

(c) 25 cm2 of KOH is neutralized by

31.0 cm3 of 0.5 M HCT.

Let the concentration of KOH be x M.

According to the following equation

KOH + HCT-KC1 + 120

1 mol 1 mol

་ ་

n(KOH) (HCT)

=

(25)(x) (3.0)(0.5)

=

x = 0.62

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