Thursday 13th June
Paper III & II: Objective & Essay Government 2hrs 40mins 2:00pm 4:40pm
This is actually the 2019 neco Chemistry practical answers Answers as questions sent to our subscribers on WHATSAPP, if you are looking for 2020 WAEC/NECO Answers midnight before the exam, try contacting us.
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Make sure you use your school titre value
For example, if your school uses 23.50
Our own solution centre may use 24.00
Pls don't be confused, just make adjustment from the beginning where you will need to find the *VOLUME. OF ACID USED(CA)*
EXAMPLES FOR 22.50cm³
Volume. Of acid used= 1st + 2nd + 3rd/3
=24.00+24.00+24.00 / 3
VOLUME. OF ACID USE for 25.00
VA= 25.00+25.00+25.00 DIVIDED BY 3
The volume or pipette used 25.00cm³
In a tabular form
Titrations |rough |1st|2nd|3rd|
Final reading |21.00|41.30|20.40|40.90
Vol of A used |21.00|20.30|20.40|20.50
Average volume of A = 20.30+20.40+20.50/3
H2X(aq) + 2NaOH(aq)-->Na2X(aq) + 2H2O(l)
Mass conc. of B = 1g/250cm³
= 1g/0.25dm³ = 4g/dm³
Molar conc. = mass conc./molar mass
= 4/(23+16+1) = 4/40 = 0.1mol/dm³
Using CAVA/CBVB = nA/nB
CA = CBVBnA/VAnB
CA = 0.1Ã—25Ã—1/20.4Ã—2
Concentration of A = 0.06127mol/dm³
(i)it might contain traces of impurities which must be removed before being weighed
(ii)it is hygroscopic which readily absorb moisture from atmosphere
1st line:|test|:Xn +distilled water,|observat
ion|:Xn dissolves in distilled water,|inference|:Xn is a soluble salt
= = = = = = = = = == = = = =
2nd line:|test|:1st portion+NAOH
= = = = = = = = == = = == =
3rd line:|test|:2nd portion+NH3 in drop and in excess,|observation|:deep blue ppt,|inference|
= == = = = = = == == = = = =
4th line:|test|3rd portion+BACL2,|
= = = = = = === = == = = == =
5th line:|test|:+ dil HCL,|observation|:insoluble in HCL,|Inference|:SO42-
Still the same
FILL IN THE TABLE:
Solution turns blue
Copper salt suspected.
Blue gelatinous precipitate
Insoluble in excess NaOH
Blue gelatinous precipitate
Soluble in excess NH³
Precipitate insoluble in excess
==â‰ =============â‰ ===================
(i)To give a sharp change in colour at the end of the acid base reaction
(i)the burette must be rinsed with the acid or allow it to drain after rinsing with distilled water
(ii)Air bubble must not be allowed in the burette
I. Hofmann voltameter.
II. Kipp's apparatus
Because silver nitrate is photosensitive (i.e.sensitive to light) Therefore,if the silver nitrate is left in sunlight or any bright light, it breaks down (hydrolyses) to give black/brown silver oxide and nitric acid.
Ngozi Osarenren has said that the regional examination body WAEC (West African Examination Council) is better and more effective than its Nigerian counterpart, National Examination Council (NECO). ... ?What we should be talking about is the sanctity and credibility of our exams; not the duplicity of exam bodies.? Prof.
Currently, public universities don't accept D7 for core subjects in admission purposes.
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The most common reason why students forget is because the material is under learned. To remember something, it must first be learned, that is, stored in long-term memory. If you don't do what is necessary to get information into your long-term memory, you have under learned the material and forgetting is normal.
21 isn't too old to start anything. Seriously though, who is going to be able to tell you are two years older. It's a none issue. It's probably a better time to start uni than an 18 year old in my opinion.
The average salaries for West African Examinations Council (WAEC) is 267,725 Naira. This data is collated by 5 employees from West African Examinations Council (WAEC).
To cheat on a test using school supplies, try hiding a crib sheet inside your shirt or under the cover of your calculator. You can also put two pieces of paper on top of each other and write your notes on the top page, taking care to press down hard so the bottom sheet has imprints of your notes on it.
It's possible to go to university without A-levels by studying an Access to Higher Education Diploma. They are accepted by many universities and can help you to meet the entry requirements for a variety of courses.
Generally speaking the best time for effective studying would be Morning (5AM to 10 AM) and Evening(5PM to 9 PM) . Reasons: Early morning is a time when there is very less movement of any form. You would be the only one awake in the house and there won't be any distractions.
WASSCE 2020 time table is now out and can be accessed by all students writing the May/June 2020 examination meant for students in schools only. The Exams officially commences on Monday, 30th March 2020 per the time table sighted by news Ghana. Last day of the exams would be Friday 12th June 2020.
If you want to apply for 2020/2021 WAEC registration form, note that WAEC 2020 registration form is already out. The form was released in November 2019. Students who wises to apply for this form, are expected to do so as fast as possible.
The answer is yes. NECO can be used to study abroad but not all schools abroad accept it. ... First of all, an applicant with a NECO result must sit for a proficiency English language exam such as GRE, IELTS, SAT, ACT, PSAT, TOEFL, GMAT, and the likes.
Although the 16 years age limit requirement for university admission has no legal backing, it has become the gold standard for some universities in Nigeria, which had in their post-Unified Tertiary Matriculation Examination (UTME) advertorial stated that ?candidates, who will not be 16 years of age by October 31, 2021, ...
Currently, waec no longer allow students to go home with their question papers. So, when you ask? does waec repeat past questions? Just have it in mind that the past questions you are talking about is the old past questions. And we all know that waec usually change syllabus, and English language do change as well.
The following are the approved fees for the examination and other related items: Registration fees ? 4,000.00 Naira (Mandatory fee) Late Registration ? 1,000.00 Naira per candidate ? (Mandatory fee) Re-Sit Exam ? 1,000.00 Naira per copy.
Probably not, you still have a degree. It's pretty bad though as you are competing with grads with 2:1 for good jobs. You can hustle to work on your CV and gain skills in the next few years, but opportunities would come as easily as someone with a 2:1 or 1st.
NECO 'No CA 3' Meaning and How to Resolve. What is CA3: Continuous Assessment for students of 3. What does it mean by No CA 3: It means your school did not uploaded their Students continuous assessment 3 on our database and by such the result of such candidate will not be released.
But if not, Zoom can be used to proctor, and prevent cheating. That is, students will have to keep Zoom running while they take their exam. This presence ensures (to the extent possible) they are not asking others for help, or leaving the room.
It is no news that many schools in Nigeria (especially private secondary schools) charge up to 50,000 naira and even above for waec registration in their respective centres. The normal price for WAEC SSCE Enrollment fee fixed by waec is within N13,950.
WAEC internal can be easier because you're have been well prepared for the papers most recently (SS1 to 3). People usually write GCE while they'd abandoned books for months - if not years. This may make it more difficult to pass. There are other reasons WAEC internal could be more convenient as detailed in this post.
NECO SSCE External Candidates Original Result Slips Cost: The Sum of One Thousand Naira Only (N1,000). NECO SSCE External Candidates Issuance of Original Certificate Cost: The Sum of One Hundred Naira Only (N100).
Under the new WAEC grading system, A1 is Excellent, B2 Very Good, B3 Good, C4, C5 and C6 are interpreted as Credit, D7 and D8 are interpreted as Pass, while F9 is Fail.
Candidates are required to enter and sit for a minimum of eight (8) and a maximum of nine (9) subjects. (iv) At least one of Physics, Chemistry and Biology. (v) At least one of Literature-in-English, History and Geography.
The fact is your O'level result; be it WAEC , NECO or NABTEB is valid for a life time and has no expiration date. The Examination conducted by these examination bodies is known as ?achievement test? and therefore the certificates awarded are valid forever.