2017/18 Waec Gce Chemistry Practical Questions And Answers

block;width:300px;height:250px" data-ad-client="ca-pub-6421572098224086" data-ad-slot="3363741150">

Finally 2017/18 Waec Gce Chemistry Practical Questions And Answers

2017/18 Waec Gce Chemistry Practical Questions And Answers  | waec past questions and answers pdf | waec past questions on physics | waec past questions and answers free download pdf | waec gce past questions pdf | waec past questions on mathematics | waec past questions and answers on english language | waec past questions and answers on chemistry | waec past questions on data processing.

1a)
i)
Firstly Mass concentration of B=3.95/750*1000
=5.2g/dm
VA=22.70cm^3
VB=25.0cm^3
ii)
Concentration of B in mol/dm^3
=Concentration in g/dm^3/Molar mass in g/mol
Molar mass of Na2CO3
=(23*2)+(12)+(16*3)
=46+12+48
=106g/mol
Concentration in mol/dm^3=5.27/106
Finally =0.0497mol/dm^3.

iii)
CAVA/CBVB=nA/nB
(CA*22.70)/(0.0497*25)=1/1
CA=(0.0497*25*1)/22.70*1)
CA=0.0548mol/dm^3.

2017/18 Waec Gce Chemistry Practical Questions & Answers waec past questions & answers pdf past questions physics past questions answers free download pdf

iv)
CA=concentration in g/dm/molar mass
Molar mass of A=H2SO4
=(1*2)+32+(16*4)
=2+32+64
Finally =98g/mol
0.0548=concentration in g/dm^3/98
Concentration of A in g/dm^3=0.0548*98
=5.37g/dm^3
[9/16, 10:11 AM] ‪+234 909 450 0129‬: 1a)
i)
Mass concentration of B=3.95/750*1000
=5.2g/dm
VA=22.70cm^3
Finally – VB=25.0cm^3
ii)
Concentration of B in mol/dm^3
=Concentration in g/dm^3/Molar mass in g/mol
Molar mass of Na2CO3
=(23*2)+(12)+(16*3)
=46+12+48
=106g/mol
Concentration in mol/dm^3=5.27/106
Finally =0.0497mol/dm^3
iii)
CAVA/CBVB=nA/nB
(CA*22.70)/(0.0497*25)=1/1
CA=(0.0497*25*1)/22.70*1)
Finally CA=0.0548mol/dm^3
iv)
CA=concentration in g/dm/molar mass
Molar mass of A=H2SO4
=(1*2)+32+(16*4)
=2+32+64
=98g/mol
0.0548=concentration in g/dm^3/98
Concentration of A in g/dm^3=0.0548*98
Finally =5.37g/dm^3.

2017/18 Waec Gce Chemistry Practical Questions And Answers  | waec past questions and answers pdf | waec past questions on physics | waec past questions and answers free download pdf | waec gce past questions pdf | waec past questions on mathematics | waec past questions and answers on english language | waec past questions and answers on chemistry | waec past questions on data processing.

(2)
(a)Inference: C is a soluble salt
(bi) Observation: A gas with irritating smell is
formed
(bii) Observation: A dense white fume of NH4Cl
is
formed
(c)Observation:-Soluble in excess
(d)Lastly Observation: A gas that turns lime water
milky and
red litmus paper to blue
(ei) Inference: Ca^2a+ -present
(eii) Furthermore Observation: White precipitate is
formed,insoluble
(fi) Filtrate->CaSO4
(fii) residue->CaCO3
3ai)
Q->H2
R->CuO
X->H2O
Y->Cu
(3aii)
Blue to Black
(3aiii)
X is serves as cooling
(3b)
-Ammonia
-Hydrogen sulphide
-Chlorine
-Ammonia
-Bromine
(3c)
-Firstly – To measure a known volume of gas
-To keep clean substance
-To deliver a substance
-Finally To keep a substance dry.

Answers Loading………

Related Post

Current Ariel Realtors Recruitment 2017 | Apply fo... Current Ariel Realtors Recruitment 2017 | Apply for Ongoing Recruitment at Ariel Realtors Ariel Realtors Recruitment 2017 | Apply for Ongoing Recruitm...
REAL WAEC Government Questions 2018 REAL WAEC Government Questions 2018 WAEC GCE Government Questions 2017  | Check Government Random Repeated Questions Here. | Government, NECO JAMB NA...
Applicant Screening Date NPS | NPS Exam Centers 21... Applicant Screening Date NPS | NPS Exam Centers 2108/2019 | NPS Writing Materials. Applicant Screening Date NPS | NPS Exam Centers 2108/2019 | NPS Wri...
Physics 2 (Essay) WAEC GCE | Physics 1 (Objective)... Physics 2 (Essay) WAEC GCE | Physics 1 (Objective)WAEC GCE | WAEC GCE Answers | Expo/Runz 2017 Physics 2 (Essay) WAEC GCE | Physics 1 (Objective)W...
WAEC Physics Questions 2018 | Copy Physics Expo R... WAEC Physics Questions 2018 | Copy Physics Expo Runz Answers Questions Here WAEC Physics Questions 2018 | Copy Physics Expo Runz Answers Questions H...
LIVE RCCG 2017 CONVENTION YOUTUBE – RCCG 65T... LIVE RCCG 2017 CONVENTION YOUTUBE - RCCG 65TH ANNUAL CONVENTION LIVE RCCG 2017 CONVENTION YOUTUBE - RCCG 65TH ANNUAL CONVENTION - Watch LIVE: 65th RCC...
100% REAL GCE WAEC GENERAL MATHEMATICS RUNZ ANSWER... 100% REAL GCE WAEC GENERAL MATHEMATICS RUNZ ANSWERS 100% REAL GCE WAEC GENERAL MATHEMATICS RUNZ ANSWERS | SIMPLIFIED WAEC GCE MATHEMATICS EXPO ANSWERS...
mouau latest admission news | mouauportal.edu.ng a... mouau latest admission news | mouauportal.edu.ng admission list 2017 Latest info on - mouau latest admission news | mouauportal.edu.ng admission list ...
DETAILED WAEC GCE TIME TABLE | FREE GCE TIME TABLE COMPLETE WAEC GCE 2017 | WAEC 2017 GCE DOWNLOAD PDF DETAILED WAEC GCE TIME TABLE | FREE GCE TIME TABLE 2017 (NAIRALAND) | COMPLETE WAEC GCE 2017 | WAE...
FULL WAEC GCE MATH, BIOLOGY, PHYSICS, CHEMISTRY &#... FULL WAEC GCE MATH, BIOLOGY, PHYSICS, CHEMISTRY & ENGLISH FULL WAEC GCE MATH, BIOLOGY, PHYSICS, CHEMISTRY & ENGLISHCOMPLETE WAEC GCE  Q & ...
100% WAEC GCE NECO PRACTICAL THEORY QUESTION 100% WAEC GCE NECO PRACTICAL THEORY QUESTION AND ANSWER 100% WAEC GCE NECO PRACTICAL THEORY QUESTION AND ANSWER | This article contains 100% WAEC, GCE...
IDENTITY CARD STATUS CHECK UP | VOTERS CARD NG IDENTITY CARD STATUS CHECK UP | VOTERS CARD NG IDENTITY CARD STATUS CHECK UP | VOTERS CARD NG | Collect your ID cards, NIMC tells eligible Nigerians |...
UPNEXT FRSC Aptitude Test | Screening Date | FRSC ... UPNEXT FRSC Aptitude Test | Screening Date | FRSC Exam Centers 2018. Federal road safety corps (FRSC) past questions and answers | FRSC past quest...
STANDARD WAEC GCE BIOLOGY PRACTICAL QUESTIONS STANDARD WAEC GCE BIOLOGY PRACTICAL QUESTIONS & ANSWERS STANDARD WAEC GCE BIOLOGY PRACTICAL QUESTIONS & ANSWERS | PAST QUESTIONS, EXPO ANSWERS...
WAEC 2018/2019 SSCE BIOLOGY, CHEMISTRY, PHYSICS, A... WAEC 2018/2019 SSCE BIOLOGY, CHEMISTRY, PHYSICS, AGRIC.SCIENCE, FISHERY AND HUSBANDRY PRACTICALS SPECIMENS PRACTICAL SPECIMENS WAEC 2018/2019 SSCE...
GET WAEC GCE PAST QUESTIONS & ANSWERS FOOD &#... GET WAEC GCE PAST QUESTIONS & ANSWERS FOOD & NUTRITION GET WAEC GCE PAST QUESTIONS & ANSWERS FOOD & NUTRITION | This article has answe...
READ  Sharp GCE Geography Practicals Questions

Leave a Reply

Your email address will not be published.