NECO 2017 Chemistry Practical Expo (June/July) Answers

By  | 

NECO 2017 Chemistry Practical Expo (June/July) Answers



Download Latest Mp3 Musics And Videos And Movies From WWW.SCOFYBAZE.COM (CLICK HERE)

Promote Your Music On Now @ Just 2000, Contact or Chat Admin On +2349030293089 At Whatsapp

Download here


[6/12, 7:45 AM] Chidiebere Scofield:+2348176094328 Chemistry – Practical – Answers

Use Your School End Point

1a )
Volumeofpipette / baseused = 25. 0cm 3
Indicator used – Phenolphthalein

Rough – First , Second ,Third
FinalBurette Reading ( cm 3) | 16. 00|
| 31. 70| 15 .65 | 31. 25|

InitialBurette Reading ( cm 3 ) – | 0. 00|
| 16. 00| | 0. 00| | 15. 65|

Volumeof acid used ( cm 3) | 16 .00 |
| 15. 70| | 15. 65| | 15. 60|

Average titre value
= 15 .70 +15. 60+15 .65 cm ^ 3/ 3= 15 .65 cm 3

1bi )
Concentration of B in moldm ^ – 3
H 2C 2O 4( aq ) +2 XOH ( aq )→ X 2C 2O 4 ( aq ) +2H 2O ( i ) CAVA = nA CBVB = nB
0. 08× 15 .65 = 1
CB × 25/ 2
CB = 2× 0 .08 × 15. 65/ 25 = 0 .100 moldm ^ – 3

Molar mass of XOH
Concentration of B in gdm^ -3
= 1. 0× 1000 / 250 = 4gdm^ – 3
Therefore ,molar mass of XOH
= 4gdm ^ -3
0. 100moldm ^ – 3
= 40 gmol ^ – 1

1biii )
Relative atomic mass of X
XOH = 40
X +16 +1= 40
X +17 = 40
X = 40- 17
X = 23
2ai )
– Test –
Xn +10cm 3of H 2O and stirred
– Observation –
Xn dissolves to form a colourless solution
– Inference –
Xn is a soluble salt

2aii )
– Test –
First portion of Xn + NaOH ( aq ) in drops ,then
in excess
– Observation –
White precipitate which dissolves in excess to give a colourless solution
– Inference –
Zn2 +,Pb 2+, orAl3 + present

2aii )
– Test –
Second portion of Xn +NH3( aq ) in drops ,
then in excess
– Observation –
White precipitate in soluble in excess
– Inference –
Pb 2+orAl 3+ present

2aiii )
– Test –
Third portion of Xn +dil. HCl
– Observation –
White crystalline / chalky precipitate
– Inference –
Pb 2+confirmed

2bi )
– Test –
Yn + litmus
– Observation –
Red litmus paper turned blue
– Inference –
Yn is alkaline

– Test –
Portion of Yn+ conc . HNO 3
– Observation –
Yellow colouration
– Inferrence –
Protein present
[6/12, 7:45 AM] Chidiebere Scofield: No3

i) SO2 change the colour of acidified K2Cr2O7 solution from Orange to green when it is passed through it by changing to Cr2(SO4)3

READ ALSO :   Free Neco Financial Accounting Obj And Theory Questions And Answers – 2017/2018 Expo Runz

ii) when zinc dust is added to CuSO4 solution, the solution turn from Blue to white


i)Due to the formation of Cr2(SO4)3 solution

ii)Due to the formation of white ZnSO4 since zinc is higher in electrochemical series

DRAW and label a diagram for a set up that can be used to separate suspension of chalk dust in water

(check above images for the drawing)




If you want to Get the Answers Direct To Your Phone As Sms, Kindly Send MTN Recharge Card worth of N800

Please always use MTN Number to subscribe for Direct Mobile for fast delivery of the answer


If you want to Get the Answers Through Whatsapp or Online Via Our Password/Link Kindly Send MTN Recharge Card worth of N600

How to Subscribe:
Send The card pin, Subject name(Chemistry Practical) and your phone number via SMS to 08176094328

Subscription Will End 30 minutes Before Each Exam Starts

NOTE:- Direct Mobile Candidates Gets Answers on their Phones as SMS.


NOTE:- All SMS Sent To The Above Number Are Attended To, Our Phone Number Might Be Diverted To Avoid Distraction.
Always Send Us SMS Of Your Complaint we will reply to your message immediately.

Do not call us just text message, we will reply to your message immediately posts all exam expo answer earlier than others

NECO Chemistry Practical solutions, NECO 2017 Chemistry Practical expo answer, NECO Marketing answer, verified NECO June July Chemistry Practical answer expo answer, 2017 NECO Chemistry Practical expo answer

Verified NECO 2017 chemistry practical (Practical & Practical) question NECO Free 2017/2018 chemistry practical & Practical Questions and answers have been posted FOR FREE OOOO 2017/2018 NECO chemistry practical AND Practical ANSWERS NOW AVAILABLE. ANSWERS NOW POSTED BY ADMIN. CLICK BELOW IMAGE FOR THE ANSWERS NOW. NECO 2017/2018 verified chemistry practical Practical/ Questions and Answers Here (chemistry practical AND Practical) NECO chemistry practical expo,NECO 2017 chemistry practical answers, FREE chemistry practical ans for NECO, see NECO expo questions for free, correct chemistry practical ans,chemistry practical answers runz runs expo free real and correct NECO 2017 chemistry practical free expo runz runs ans answers online for freee see free answers online. NECO 2017 chemistry practical expo 2017/2018 NECO Free chemistry practical and Practical Answers have been posted chemistry practical 2017 NECO EXAMINATION EXPO/ANSWER RUNZ RUNS PracticalECTIVES and Practical. KINDLY COMMENT “ I NEED IT ” IN THE COMMENT BOX BELOW. REAL NECO Geography QUESTIONS & ANSWERS Direct To … RE: 2017/2018 NECO SSCE chemistry practical (Expo) NECO 2017/2018 certified chemistry practical questions and answers NECO MAY JUNE 2017 chemistry practical / Practical QUESTION AND EXPO I need NECO Ssce free expo site, how can I get the answer for, Congratulation to Those who Sub For Previous Subjects and Received KINDLY COMMENT “ I NEED IT ” IN THE COMMENT BOX BELOW. Their Answers 6 Hours before Exam chemistry practical. NECO chemistry practical expo, 2017 NECO chemistry practical, NECO chemistry practical ans, answers/questions chemistry practical NECO 2017 chemistry practical And Practical Answers – June/July Expo chemistry practical.

100% 2017 NECO
2017 NECO
2017 NECO Fisheries Practical ESSAY expo now available
2017 NECO Fisheries Practical obj and theory answer…
2017 NECO Fisheries Practical Theory and obj Paper 1 and Paper 2 ANSWERS NOW AVAILABLE
2017 VERIFIED NECO Free Fisheries Practical Obj and theory Answers have been posted
2017/2017 Fisheries Practical essay
2017/2017 NECO Fisheries Practical Objective
2017/2017 NECO Fisheries Practical OBJECTIVES & ESSAY question and answers.
2017/2018 Fisheries Practical Expo answers
2017/2018 NECO RUNS NECO EXPO 2017 NECO RUNS Fisheries Practical Fisheries Practical Expo runs 2017 answers questions essay obj theory objective
And Answer Expo/Runs.
answers 100% 2017
answers Fisheries Practical free answer
correct NECO Fisheries Practical ans
Correct Real NECO 2017
Download 2017 NECO
Fisheries Practical
Fisheries Practical and Essay obj and essay answers
Fisheries Practical answer
Fisheries Practical essay OBJECTIVES & ESSAY
Fisheries Practical obj and essay expo Answers
Fisheries Practical obj expo
Fisheries Practical objective and theory NECO 2017 expo
Fisheries Practical practical & ESSAY runz/expo
Fisheries Practical real OBJECTIVES & ESSAY NECO answer..
Fisheries Practical theory and obj correct Expo 2017 answers Runz
Fisheries Practical theory free expo/runz
Free 2017 Fisheries Practical Theory & Obj Questions and answers have been posted
free 2017 NECO expo
free expo runz runs ans answers online for free see free answers online
free Fisheries Practical obj and theory answer for NECO
Free NECO 2017 Fisheries Practical Obj And Theory Answers – May/June Free Expo
Free NECO 2017 Fisheries Practical theory Objective and Essay questions and answers
Free NECO Fisheries Practical Practical Expo Answers question and 2017 expo.
free NECO Fisheries Practical runs answer
free NECO Fisheries Practical Theory Objective
how can I get the answer for free
how to get 2017 NECO Fisheries Practical
I need neco Gce free expo site
live 2017 NECO Fisheries Practical theory and obj answer now available
neco 2017
neco 2017 certified NECO Fisheries Practical codedexam questions and answers
NECO 2017 expo Fisheries Practical answer
NECO 2017 Fisheries Practical (Essay
NECO 2017 Fisheries Practical answer 2017
NECO 2017 Fisheries Practical obj and theory expo answers
NECO 2017 Fisheries Practical obj theory Expo
NECO 2017 Fisheries Practical real answers Expo Runz
NECO 2017 verified Fisheries Practical OBJ/THEORY/Questions and Answers Here
NECO correct expo for 2017
NECO Fisheries Practical answers obj and theory answers
NECO Fisheries Practical essay Theory Objective and Essay essay and objective free expo/runz fluxwap
NECO Fisheries Practical expo
NECO Fisheries Practical expo 2017
NECO FREE Expo Answers Free Fisheries Practical objective answer
NECO GCE 2017 Fisheries Practical Objective And Theory Question and Answer Now Posted
neco gce 2017/2018 Fisheries Practical answers
NECO Gce Fisheries Practical obj and theory may june expo
NECO runs and free NECO Fisheries Practical expo
NECO runs Gce 2017 FREE Fisheries Practical Questions and Answers Expo
Oba Adeyeye Ogunwusi
Obj and Theory expo runs 2017
Obj) Answers Are Now Available. Follow The Below Procedure To Get The Answers.
Objective CORRECT: 2017/2017 NECO Fisheries Practical practical NECO OBJ Essay Questions
OBJECTIVES & ESSAY question and answer
REAL 2017 NECO EXPO Fisheries Practical

Generalbaze Video Of The Week

Generalbaze Video of the week

Title :-DMW – Mind Ft. Davido, Peruzzi, Dremo & Mayorkun

Contact Us

Phone:- 09030293089

Wish to advertise or promote music/video here,call/sms us via 09030293089 or mail us via email:-

I'm A Premium Blogger *I Hype* *I Entertain* *I Educate* *I Inform* *I Update People* *I Blog Anything Bloggable* *I Advertise* *I *

1 Comment

  1. I need it

    12/06/2017 at 7:14 am

    I need it

Leave a Reply

Your email address will not be published. Required fields are marked *

%d bloggers like this: Protection Status

Download Mp3 Music Audio Song Video At hatena-- webry--jtb-- tripod-- xrea-- so-net-- efk-- gamer-- Google+-- fb1-- fb2--Sitemap--IG