₦airaland Forum

buzyguy: mistak there,nf is 2 times 96500

..yes ke...chek my solvin again

buzyguy: gud trial,
frm d equatn u balanced abov u still av to rearrang their moles to d nearst or least valuee dat is,
3/2o2(g)---->o3(g)
then putting valuuez givez -69.8j/molk as answer.

,,,datz true....spot on..more questions plz....Uncle fetus8-)

buzyguy: wow! Love dzzz letz av dz as intro
1)balance d equatn
o2(g)---->o3(g)
if d absolute entropies of oxygen and ozone are 204.8 and 237.4j/molk respectvly,calculate standard entropy change in the reaction cited.


2)20cm3 of a gaseous hydrocarbon were mixed with 160cm3 of oxygen(an excess),both at room temperature and later exploded.on cooling to the original temperature of measurement,130cm3 of the residual gaseous mixture was obtained.After passing through conc.koH solution the volume was reduced to 50cm3.The volume in cm3 of o2 used and co2 produced are respectively:
a)80,110
b)48,80
c)30,48
d)110,80


3) (i) p/p (linearly opposed)
(ii)p/p (parallel)
(iii)sp/sp
(iv)sp2/sp2
(v)sp/p (linearly opposed).
Which of these mode(s) of overlappings is/are found in carbon(iv)oxide(co2) moleecule?
A) i,ii,iii only
b)ii,v only
c)i,v only
d)iii,iv,v only


4)20cm3 of a gaseous hydrocarbon were mixed with 120cm3 of oxygen(an excess) and both at room temperature and later exploded.on cooling to original temperature of measurement,100cm3 of residual gaseous mixturee was obtained.After passing through concentrated koH solution,the volume was reduced to 40cm3.ccalculate the molecular formula of the hydrocarbon.
A)C2H4
b)C3H6
c)C2H6
d)C3H4

goodnite!

.....i'm goin 2 ansa number alone bcus it got no options,,,,as 4 d others i guessed dey are frm d utme pack...dnt make dis thread a mess by bringin questions frm jamb pack..where u hav ur ansa already...bring questions dat u found difficult 2 solve...just an advice...2 question one...3o_2(g)>>2o_3(g) i.e _ means subscript....So_2=204.8j/kmol, So_3=237.4j/kmol...using dis xpression; €S=€S_product- €S_reactant.....€S=2(273.4)-3(204. =546.8 - 614.4= -67.6j/kmol ...where S=entropy, €=change, _=subscript.....#morequestionsplz#...Uncle Fetus

yinkhar: if 0.1faraday of electricity of cuso4 is passed,the maximum weight of cu deposited on the cathode is?(molar mass of cu=64)

...shortcut formular..M=Q*R.M.M/nf * 96500c...where M=mass, Q=it(f), R.M.M=relative molecular mass of d given ion, nf=no of faraday, 96500c= one no of moles.....to d question..Q=0.1F, R.m.m= 64; nf=2(frm electrochemical series) , m=?.....usin d formular now:: M=0.1 * 64 /2*96500=3.32*10^-5 g or 0.000332g.....more questions plz...Uncle fetus.

Well, if u tink i'm wrong no problem...i vowed never 2 argue...my records in kemis3 speak 4 me....only if u knw me...more questions plz++uncle fetus....

Kunlexic: Answer did simple 1
what is the atomic number of an elemrnt whose ion X^2+ has electronic configuration of 1s2 2s2 2p6 3s2 3p6?

...i hav bin observin d thread so far n i tink u guys are takin dis question 2 far...itz over a page now and u are still solvin dis....well, d ansa is 16:::Explanation= for any X with superscript negative number i.e X^2-; it means addition of electrons..while, if superscript positive number i.e X^2+ it mean substraction of electrons...and remember Electronic conf. Is based on electrons...i hope dis would help...bring more questions plz...stil remain Uncle Fetus

Still observin oooo.....

No questions ni?

I'm innnn...lasuite represented!

Can't remember the title thou, it had onyeka nwenu acted as a mad woman...she had a twins in da movie...i tink charles okafor waz one of d twins...dat movie henh waz huge den...

Accuratephemite: did anyone recieve a text message postponing screening exercise 4 tuesday... This applicable 2 de candidates... Reply asap

....yes i did bt i cant find it on dere website....i'm confused!

Judee99: Any fud technologist or laspotianz here?

...yelz..laspotian in da buildin nt a fud technologist thou..or a funaabite....chem engr nd lautech...*winks*

Yetayo: Hello peeps...pls i need ur help,is it true dat lautech is nt going to admit any D.E student into medicine nd surgery dpt dis year?
Pls i need a reliable info...tnks guys!

...i tink so cuz dey are yet 2 accreditate d course...u may check dia site 4 a more detailed info....huh!

Yetayo: Hello peeps...pls i need ur help,is it true dat lautech is nt going to admit any D.E student into medicine nd surgery dpt dis year?
Pls i need a reliable info...tnks guys!

...i tink so cuz dey are 2 accreditate d course...u may check dia site 4 a more detailed info....huh!

tundeks: When will 2013/2014 LAUTECH post D.E registration commence and when will the post utme registration starts

...very soon bro..i'm an aspirant 2..wat course u going 4?

mosho2good: Trust me super chickens are not going to make it to quarter final

..absolutely...rather we going to the semi's....oh! U need 2 be told..d con. Cup got no quarter's...c learner wey dey diss..lol...go eagles..

To all direct entry aspirants of ladoke Akintola University of technology, ogbomosho...kindly, lets discuss here abt our ambition..tank u

@op dont tell me u are a laspotian? Check ur english and spellings....kindly make corrections 2 stop downgrading my Alma-mata...tnx....4 admission seekers jst choose laspotech as first choice,prepare 4 d putme..Datzall...Gudday

@op dont tell me u are laspotian? Check ur english and spellings....kindly make corrections 2 stop downgrading my Alma-mata...tnx....4 admission seekers jst choose laspotech as first choice,prepare 4 d putme..Datzall...Gudday

mathefaro: pls guys, is it advisable to submit just the print out and the level results at the jamb ovis? I don't want to use awaiting results and I already know my grades but these laspo pipu don't want to release our results o

...plz, are u talkin abt d same Laspotech?...cuz laspotech as been very fast in releasing d HOC..even d Certificate..i got mine within 30min.....

Walexz02: Hi fellow aspirants! I heard we are just to submit 3 forms at jamb office.
1-statement of result~ND/HND et al.
2-O'level and
3-D.E e-print out.
Is that so? I need reply asap please. Thanks rummies.

....datz jst it!..bt d DE print-out shud b original yl odaz photocopies...

ULSHERLAN: Score 200 n abv. Information will be on the sch site once there is anything u wanna knw

...200 nd above ke? What exam is dat? I meant Direct Entry Aspirants...tanx

Abeg...what abt DE aspirants

Judee99: GREATEST LASPOTIANS..... JAYSLIKKK AND JUDEE99 ON 2GO..... 07062174010

....GREAT!!! I Rep. Chem. Engr

Abeg help me check these= 35549315GD and 35717886BB...tanx

Plz..is dere any chemical Engineering aspirant in da room...just finish my ND programme with Upper class..plz what are my chances?

Awe fisayo: House Pls Did LAUTECH, AAUA DE Require 4 Transcript B4 Admission Or Write Exam. Or Sell Any Tin Like Green Card.

,,halo guy, i chose Lautech 2....join me on 2go and letz talk...username=fetusboy

Plzz.. Any Lautech aspirant in da house?