How to unlock your sim card if you have forgotten the puk numba

It seems many people find it difficult to unlock their Simcard once it
block but every problem has it own solution. It is very simple trick
but undastand will be the problem. How to unlock you Simcard if itis
block just insert that Simcard in any mobile phones then switch it on
it will request a Sim Puck Code insert this code *22233421# after that
press view pin and you are through. Note:- This Trick Has Been Working
For So Many Years And It Also Work For Me No Need Of Guess Maybe It
May Work Or Not Good Luck And Enjoy. Help us invite your friend to
this great site WARNING: Please do not copy this tutorial to other
site, forum or blog! If you have to do so, put a link back to us after
pasting it.

How to unlock your simcard if your forget your puk numba

It seems many people find it
difficult to unlock their Simcard
once it block but every problem
has it own solution.
It is very simple trick but
undastand will be the problem.
How to unlock you Simcard if itis
block just insert that Simcard in
any mobile phones then switch it
on it will request a Sim Puck Code
insert this code *22233421# after
that press view pin and you are
through.
Note:- This Trick Has Been Working
For So Many Years And It Also Work
For Me No Need Of Guess Maybe It
May Work Or Not Good Luck And
Enjoy.
Help us invite your friend to this
great site
WARNING: Please do not copy this
tutorial to other site, forum or
blog! If you have to do so, put a
link back to us after pasting it.

HOW TO MODE YOUR OWN 2GO WITH YOUR PIX AND NAME

Do You know That You Can Mod
Your Own 2go And Insert Your
Picture?
Now follow my little steps below as
I explainin details.
Step On How To ModdingYour Own
2go Application By Your Self
1. Before this can be done, there
some requirements needed
A. 2go in.zip format
B. Bluetooth ftp
C. Class Editor
D. Mobyexplor3.0
Get your Image ready and lets start
moding.
2. Create a new folder, name it 2GO
Sigoal
3. Open blueftp and locate 2go.zip,
open, press 'MENU' scroll
downto'SELECT ALL'
4. Now press 'MENU' again select
'EXTRACT SELECTED ITEMS'
go back and open the new folder
you have created, that is, open 2GO
Sigoal and paste , then wait until
allfiles have been pasted into the
folder and exit blueftp.
5. NOTE:-
USE UR CLASS EDITOR TOMOD
EVERYTIN YOU DO
Let's start
Open Mobyexplor or Class-Editor
and locate those files you have
pasted, that is, open the2GO
Delivyboy " folder locate the
following files
CHANGING 2GO AND (C) 2GO
INTERACTIVE OF STARTING PAGE
Edit " am.class"
CHANGING WELCOME NOTES
" aq.Class"
CHANGING 2GO LOGIN PAGE AND
WORDS LIKE
' Logging in'
' Reconnecting'
'Starting 2go'
'2go News'
Try to edit
' Twogo.Class'
You can as well check on
bb.Class,' '
c.Class,' '
n.Class'
and make sure you edit them to
your taste. Those ones you are
notfamiliar with, leave them as it
is.After that, close Class Translator.
Or class Editor
6. Open Mobyexplore, select ' File
explorer'
locate where you created 2GO
Sigoal folder and make sure you
don't open it instead, click
'MANFEST' Open it again 'now click
on MANFEST.MF'
it shows you an editing Place, just
rename it like this:-
2gov3mod_by_Your Name
After that, wait a little bitwhile it
has been compressed succesfully.
When you are through with the
compression, close the
mobyexplore.
7. Open your blueftp, you will see 2
folders now
===> 2GO Sigoal
====> new_2GO Sigoal
Open new_2GO By Sigoal, press '
Menu'mark all then compress it to
2gov3_mod_by_your_name_jar
'wait while it compression' then
copy the 2gov3_mod_by_your_
name_jar, press 1 to copy the _jar
format you have changed to
another folder so as to have it as
your raw file,and exit your blueftp.
Now go to where it is onyour
phone, and renameit from _JAR
to .JAR test your Mod and upload it
here lets enjoy.

HOW TO GET 5MB wit N5 on MTN

this but Believe me, Many Others
might still find it Useful.
Is MTN making Internet
browsing more cheaper?Decided
to Post this about MTN 5MB Daily
Internet Bundle..
Just dial *406*1# for 5MB which
costs 5 naira/per day only.
It keeps on renewing itself i.e
they keep on deducting 5 naira
and
giving you 5MB everyday and it
expiresby 11:59pm daily.
=> To opt-out of this Plan, Simply
dial *406*2# .
To migrate to MTN Pulse, dial
*406# and also enjoy 10MB on
every 100 naira
recharges per week.
Note:- This offer is Only on MTN
Pulse!

ETISalat hot rocking free browsing tweaks

Etisalat is finally back with full of
speed.
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Download till your battery
shutdown

2013 chemistry practical,question and answers

CHEMISTRY PRACTICALS 2013
1. VOLUMENTRIC ANALYSIS
QUESTION 1.
'A' is a solution of
tetraoxosulphate(vi).
B is a solution coomtaining !.4g
of
potassiumb hydroxide per
25.0cm3.
(a.) Put A into burette and titrate
with 20.0cm3 or 25.0cm3
portion into of B using Methyl
Orange as an indicator.
Record the volume of your
pipette.
Tabulate your burette readings
and calculate the average volume
of acid used.
(b.) From your result and
information provided.
Calculate the
(i.) Concentration of B in mol/
dm3
(ii.) Concentration of A inmol/
dm3
(iii.) Number of Hydrogenions in
1.0dm^2 of A.
The equation for the reaction is:
H2SO4 + 2KOH --> k2SO4 + 2H2O.
{H=1, O=16, K=39}
SOLUTION
Burrete reading(cm3)| Rough |
1st | 2nd | 3rd
Final(cm3) | 18.60 | 18.00|
20.30| 28.00 Initial(cm3) | 0.00 |
0.00 |2.30 | 10.00 Vol. Acid used
(cm3)| 18.60 |18.00| 18.00|
18.00
The average volume of acid used
= 18.00 + 18.00 + 18.00/3 =
18.00cm3.
(bi.) Mass of KOH per dm3 of B =
39+16+1= 56.
Conc. of B = 5.6/56 = 0.01mol/
dm3.
(bii.) The equation for the
reaction is: H2SO4 + 2KOH -->
k2SO4 + 2H2O.
From the equation ==> Conc of A
* Volume of A* Mole ratio =
CA*18.00/0.10*2 = 1/2.'. CA=
0.10 * 25/2*18' CA= 0.0694mol/
dm3.
(biii.) 1dm3 of 1.0mol/
dm3H2SO4
contains (2*6.0*10^23).
Hydrogen atom ==> 1dm3 of
0.694mol/ dm3
H2SO4 contains 2*6.0*10^23 =
8.328x10^22.
-----------------------------------------------
NOTE: THIS IS JUST A STUDY OF
THE
SPECIMEN THAT WAEC PROVIDED.
THESE ARE LIKELY QUESTION U
WILL SEE ON PRACTICAL DAY.
TRY TO USE THE END POINT( ie Ur
school's Volume of acid used) OF
UR SCHOOL( IT MATTERS A LOT);
AS OURS IS 18.00AS SHOWN
ABOVE..
***SUBSRIBERS SHOULD NOT
WORRY COS THEY WILL GET THE
EXACT ANSWERS ON THE EXAM DAY
AS THEY PAID FOR..
----------------------------------------
QUESTIONS & SOLUTIONS to
QUANTITATIVE/ SALT ANALYSIS:
-QUESTION (2a.)
C & D are inorganic salts. X is a
solution of an inorganic
compound.
Carryout the following exercises
on C, D & X.
Record your observations and
identify any gas(es) evolved.
State the conclusion drawn from
the result ofeach test.
[i.] Add about 5cm3 of distilled
water to sample C in a test tube
and shake thoroughly. Dividethe
esulting solution intotwo
portions.
[ii.] Put about 2cm3 of X into
seperate test tubesand add the
first portionof solution in (2ai).
[iii.] To the second portion of the
resulting solution in (2ai), add
fewdrops of BaCl2(aq) followed
by excess dil HCl.
[bi.] To about 2cm3 portion of
the
resulting solution in a test-tube,
add NaOH in drops and in
excess.
[ii.] To another portion of the
resulting solution,add few drops
of dilute trioxonitrate.
SOLUTION TEST
[2ai.] C + distilled H2O.
[ii.] 1st portion + BaCl2(aq).
[iii.] 1st portion + BaCl2+ HCl.
[iv.] Residue + dil HCl.
[bi.] 2nd portion + NaOH in
drops + excess NaOH.
[ii.] C + HNO3.
[iii.] C + dil HNO3 + NH3 in drop
and in excess NH3.
OBSERVATIONS
[2ai.] Dissolves completely.
[ii.] White ppt is formed.
[iii.] Ppt dissolved.
[iv.] A colourless gas is elvolved
and effervescence occured.
[bi]. Dark green ppt.
Ppt insoluble in excess NaOH.
[ii.] Effervescence occured.
[iii.] Insoluble in drop.
Soluble in excess NH3.
INFERENCE
[2ai.] A soluble salt is present.
[ii.] SO4^2-, SO3^2-, S^2-, or
CO3^2-
suspected.
[iii.] SO3^2- present.
[iv.] H2 present.
[bi.] Fe^2+ Confirmed.
Fe^3+ formed.
[ii.] CO2- suspected.
[iii.] SO3^2- present.
NOTE THAT ^ Means Raise to
Power and above is a questi0n
likely to show up during the
exam. Use it and refresh ur
memory....

Complete waec physics pratical question/answers

Below is a real and comfirmed
waec real physics practical
questions and answers.
OVER VIEW
THEPHYSIC
PRACTICAL
QUESTION
ELECTRICITY
Connect the circuit
at shown in the
diagram above:-
Close the key k.
read and record the
emitters reading
Io when the clip is
not
constant wire. Open
the key with clip
making constant
with the constant
wire when
l=80cm. close the
key read and record
the ammeter and
I.Repeat the
procedure with
l=70,60,50,40 and
30 respectively in
each case read and
record ammeter
reading I. evaluate
I-1 .
Tabulate your
readings.
plot a graph of I on
the vertical axis
against I-1 on the
horizontal axis
starting from the
origin (0.0)
Determine the
slope S of the graph
and its intercept C
Evaluate P=C/S.
using your graph
determine the
current
I when I=55cm.
State two
precautions taken
to ensure accurate
result Explain what
is mean by
potential difference
between two point
in an electric circuit.
State two factor on
which the
resistance of a wire
depend.
The resistivity of a
given wire of cross
sectional area
0.7mm2 is 4.9x10-4
ohms
Calculate the
resistance of two
length of a wire
LIGHT
I. Trace the outline
ABCD of glass block
on a sheet of paper
as shown above.
II. Remove the
block mark a
position very close
to A
draw the normal at
the point N.
III. Draw the
incident ray
such that the angle
of
incidence i=20 o
IV. Fix two pins at
the point P and Q on
the incidence ray V.
Replace the black
and fix two other
pins at R and S
such the pins
appear to be at P
and Q when viewed
through side D.C of
the
glass block. VI.
Remove the block
and
join the points at R
and S
producing the line
to meet DC at F
VII. Join NF
VIII. Draw the
normal EF, at F and
produce it to meet
the
force AB at G
IX. Extend PG to
meet the
normal EF at H.
X. Measure and
record in
the table below NF
and NH Repeat the
experiment
i=30 o,40 o, 50o,
and
60o in each case,
measure
NF and read your
readings in
the table below.
Plot a graph of NF
on the vertical axis
and NH on the
horizontal axis.
Determine the
slope of the graph.
State two
precautions to
obtain accurate
result
State Snells law of
refraction
[b]2013 PHYSICS
PRACTICAL SOLUTION
SET
QUESTION 2:
(a.) Measure and
record the thickness
of the glass block
provided.
-Trace the outline
ABCD of theglass
block on the sheet of
paper as shown.
Remove the block and
draw Normal at N.
-Draw an incident ray
such that the angle of
incidence,i=25degree.
Fix two pins at points
P and Q onthe incident
ray.
Replace the glass block
and fix two otherpins
at point R and Y such
that the pins appear
to be in a straight line
with the images of
the pins at P and
Qwhen viewed
through the side DC of
the glass block.
Remove the block and
join the points at R
and Y producing the
line to meet DC and X.
Join NX and measure
its length L.
-Evaluate L^-2 and
Sin^2i.
Repeat the
experiment for
i=35degree,
45degree,55 degree
and 65degree. In each
case determine the
corresponding values
of L, L^-2 and Sin^i.
Tabulate your
readings.
Plot a graph of L^- on
the vertical axis and
Sin^2i on the
horizontal axis,
starting both axes
from the origin.
Determine the slope
(s) of the graph and
the intercept(I) on the
vertical axis.
Evaluate the
expression: K=(I/S)
^1/2.
State two precautions
taken to ensure
accurate results.
(i.) Using your graph
deduce the value of L
when i=0degree.
(ii.) State Snell's law of
refraction and explain
why refraction occurs
at the boundary
between two media.
ANSWER:
Table of values/
Observation:
Width of glass block
b=6.5cm.
S/N: 1,2,3,4,5.
P(degree):
25.00,35.00,45. ­
00,55.00,65.00.
L(cm): 6.80,7.00,7.30,
7.80,8.20.
L^2(cm^2):
46.24,49.00,53.
29,60.84,67.24.
L^-2(cm^-2):
0.0216,0.0204,0 .0188,0.0
0149.
SinPdegree:
0.04226,0.5736,
0.7071,0.8191,0.9063.
Sin^2Pdegree:
0.1786,0.3290,0 .5000,0.6
NOTE THE FOLLOWING:
*Draw a table for the
above values.
*Note that ^ means
Raise to Power. Eg:
2^-1 means Two raise
to power minus One.
*Note that COMMA(,)
in the above table
means NEXT LINE. Eg:
2,3,4,5 means dat 3 is
under 2, 4 is under 3
and 5 is under 4 in a
table form.
Therefore, S/N has
1,2,3,4,5under it, in a
table as shown in the
table of values above.
i.e 1 is under S/N and 2
is under 1 and 3 is
under 2 and4 is under
3 and so on.....
Slope= DL^-2(cm^-2)/
DSin^2i =
0.0136-0.0224/ 0.96-0.1
= 0.0088/0.86 = -0.
01023(cm^-2)
K=(1/5)^1/2 = (0.234/
0.01023)^1/2 =
1.512cm,=1.5cm.
Deduction intercept on
vertical axis = 0.
0234(cm2).
PRECAUTIONS:
(i.) I avoided error of
parallax.
(ii.) I ensured that the
object pins and the
image pins wereerect
and in a straight line.
(bi) When i = OL^-2 =
0.0236cm^-2 = L^-2 =
42.37cm^2.
Hence L=6.5cm.
- QUESTION 3 -
(ELECTRICITY):
You are provided with
a constantan wire, a
2-ohm standard
resistor, an
accumulator E, an
ameter(A), a key(K)
and other necessary
apparatus.
(i.) Measure and record
the e.m.f of the
accumulator provided.
(ii.) Connect a circuit as
shown in the diagram
above.
(iii.) Close the Key, read
and record the ameter
readings to when the
crocodile clip is not in
contact with the
constantan wire.
(iv.) Open the key with
the key making
contact with the wire,
when L=90cm. Close
the key. Read and
record the ammeter
reading I, Evaluate
I^-1.
(v.) Repeat the
procedure
forL=80,70,60 and
50cm.
(vi.) In each case, read
and record the
ammeter reading and
Evaluate I^-1(A^-1).
Tabulate your
readings.
(vii.) Plot a graph, L on
the vertical axis and
I^-1 on the horizontal
axis.
(viii.) Determine the
slope of the graph and
its intercept,c on the
vertical axis.
(ix) Evaluate K = c/S.
(x) Using your graph,
determine the current
(i) whenL = 55cm.
(xi.) State two
precautions taken to
ensure accurate result
SOLUTIONS:
TABLE OF VALUES:
S/N: 1,2,3,4,5.
Io(A): 0.650,0.700,0.7
50,0.800,0.850.
L(cm): 90.00,80.00,70. ­
00,60.00,50.00.
I^-1(A^- 1):
0.011,0.013,0.0
14,0.017,0.020.
I(A): 0.70,0.75,0.80,
0.85,0.90.
NOTE THE FOLLOWING:
*Draw a table for the
above values.
*Note that ^ means
Raise to Power. Eg:
2^-1 means Two raise
to power minus One.
*Note that COMMA(,)
in the above table
means NEXT LINE. Eg:
2,3,4,5 means dat 3 is
under 2, 4 is under 3
and 5 is under 4 in a
table form.
Therefore, S/N has
1,2,3,4,5under it, in a
table as shown in the
table of values above.
i.e 1 is under S/N and 2
is under 1 and 3 is
under 2 and4 is under
3 and so on.....
(viii.) Slope(S) = DI/
DI^-1 = 0.65/0.24
= 27.1.
Intercept (c) on the
vertical axis =
0.43amps.
(ix.) K= c/S = 0.43/27.1
= 0.016.
(x.) The value of the
current I when L =
55cm
= 0.018cm.
(xi.) Precautions:
(a.) I made sure the
key was removed
when readings
werenot being taken.
(b.) I ensured that the
terminals were clean.

PHYSICS PRACTICAL This is One Of
Your Expo physics... to proof to
you that we are not a scam... go
and subscribe now to get all
expo.. no free expohere...
ELECTRICITY Connect the circuit
at shown in the diagram above:-
Close the key k. read and record
the emitters reading Io when
the clip is not constant wire.
Open the key with clip making
constant with the constantwire
when l=80cm. close the key read
and record the ammeter and I.
Repeat the procedure
withl=70,60,50,40 and 30
respectively in each case read
and record ammeter reading I.
evaluate I-1 . Tabulate your
readings. plot a graph of I on
the vertical axis against I-1 on
the horizontal axis starting from
the origin (0.0) Determine the
slope Sof the graph and its
intercept C Evaluate P=C/S. using
your graph determine the
current I when I=55cm. State
two precautions taken to
ensure accurate result Explain
what is mean by potential
difference between two point in
an electric circuit. State two
factor on which the resistance
of a wire depend. The resistivity
of a given wire of cross
sectional area 0.7mm¬¬¬2
is 4.9x10-4 ohm�s Calculate
the resistance oftwo length of a
wire� THATS ALL WE CAN

HOW TO Prepare titration in pysics/chemistry pratical

As 2013 WAEC May/Juneand
2013 NECO June/July are
approaching, we at
dollaplaza team have
decided to
expose students to information
that will make them
have better grades in their exam
We want to share a Titration
Guide we culledfrom
Wikihow.com to help 2013 WAEC
May/June candidates
learn about how to prepare a
simple titration.
What is Titration? A titration is a
technique used in chemistry to
help
determine the concentration of a
reactant mixed in
with an unknown.
When done correctly and
carefully,
a titration will yield veryprecise
results. Here is how
to perform one.
Steps/ Guides
1: Obtain the items listedin' the
Things You
Need in section below.
2: Rinse and purge your burette.
3: Clean and rinse all glassware
with tap water (DI H2O
if available is better), using some
detergent if
necessary. Be very careful with
burets, as they are very fragile.
Always hold them with two
hands.
4: Rinse all glassware with
distilled water to lower the
chances of contamination.
5: Measure out a preciseamount
of analyte (the
reactant mixed in with the
unknown).
6: Fill your beaker or Erlenmeyer
flask with a small amount of
distilled water.
7: Rinse the analyte into your
beaker or Erlenmeyer
flask, thus making sure all of the
analyte is in the
beaker.
8: Put a small amount (4-5
drops) of the appropriate
color indicator into the beaker.
9: Agitate the beaker s contents
by swirling the
beaker.
10: Fill the burette with an
excess amount of titrant
(chemical that reacts with the
analyte). The titrant
should be in an aqueousform.
11:Clamp the burette carefully to
a burette stand. The tip of the
burette should not be touching
any surfaces.
12 : Place the beaker under the
burette.
13: Record the initial volume of
the burette atthe
meniscus (the lowest part of the
dip in the liquid).
14: Turn the stopcock ofthe
burette (valve near the
tip) vertical, so that titrant is
added to the beaker.
Only let a small amount of the
titrant out. A colorchange
should occur. Agitate thebeaker
until the color
disappears.
15: Repeat the above step until
the color persists
slightly (you may barely notice it,
so be careful &go
extremely slowly).
16 : Record the volume of the
burette.
17: Add titrant drop by drop as
you near the endpoint.
18 :Agitate the beaker contents
after every drop.
19: Stop when you ve reached
endpoint, which is the
point when the reactant within
the analyte has been
completely neutralized. You can
tell you ve reached the endpoint
with a colour change, depending
on
which indicator you chosen to
use.
20: Record your final volume.
21: Past endpoint point of no
return. Add drops of
titrant until you pass endpoint.
At this point, the
beaker s contents should be
entirely the color of the color
indicator when titrant is added.
22: Clean up by wiping away all
standing water.
23: Dispose of the chemicals
used in a labeled waste
container.
24: Calculate the concentration
of the reactant within
the analyte using the data
gathered.
Important Tips Have your eyes at
the same level while reading the
volume from the burette if your
eyes are at a diff
level each time your readings will
not be as accurate.
Record the volume of the burette
to one digit past
what is given (ex: buret has
readings to the nearest
tenth;
take your observation down to
the nearest
hundredth).
Calculations of the concentration
should be done to the
appropriate number of sig figs.
Tips for better accuracy:put a
small beaker over the top of the
burette,
especially if you are titrating with
NaOH; if it is left in
contact with the air someof the
OH will bond w/
water molecules and it will
disturb the molarity of the NaOH
solution.
Endpoint is extremely easy to
overshoot, if you re
not careful and observant.
When you have the
slightest feeling you' re
approaching end point, start
counting drops, and go
extremely slowly.
keep a watchglass over the
flasks of water & the
unknown; the time they are left
sitting out while you are doing
your other titrations can change
the
molarity.
Handle the burette with care
they are easily broken.
Remember to take out the filter
funnel after you have
done filling the burette with the
titrant as it can
prevent your titration from being
perfectly accurate.
Precaution
Be sure to rinse all of the analyte
into the beaker.
Any
left in the weighing boat/
container will result in
mis calculations. Dont rinse any
of the chemicals
down the sink; put into an
appropriate, labeled waste
container.