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7/31/2019 Prject Presentation
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EP BENCHAMA MAHARAT SCHOOL
LIME WATER DECREASING GLOBAL WARMING
Submitted toMr.Pisgahbuan gonmie
By
Chatdanai Chanthowong no:2
Bhutsayarungsri Yupas no:20
Papawarin Lailung no:22Saiphet Wiriyasuapong no:28
2012
Department of science
EP Benchama Maharat school
Ubon Ratchathani,Thailand-34000
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Hypothesis The reaction between carbon dioxide
and Limewater can decrease global
warming
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objectives To study about reaction between
limewater and carbon dioxide and its
products.
To adapt this reaction to decrease
global warming.
To prove that this reaction can heal
the world which is harmed by global
warming
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AbstractThe
reaction
between
carbon
dioxide
andLimewater
give
calcium
carbonate
and
water
asthe
equation
given
below
=>
As
we
already
learn
in
chemistry
classes
that
allreactions
materials
like
carbon
dioxide
orLimewater
after
reaction
it
must
change
toother
chemical
same
as
we
can
see
In
theequation
above
both
of
it
changes
and
formcalcium
carbonate
and
water
.
Which
is
can
low
down
the
volume
of
carbon
dioxide
in
the
ozone.
thats
mean
that
the
formation
of
green
housegases
or
global
warming
is
going
to
decrease
.Also
you
can
create
your
own
limewater
by
mixwhite
mortar
which
is
very
easy
to
find
in
themarket
and
also
low
in
price
with
water
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introductionLime or common name in chemistry as calcium
oxide . this lime isnt a fruit but its a
mineral .if lime react with water it gavelimewater
Limewater or in chemistry name is calcium
hydroxide. it s the saturated calcium oxide
solution that react with water , normally its
a milky solution or sometimes colorless but
commonly its colorless solution . this
colorless solution is very useful solution to
human race in many ways. e.g. chemistry as
detector of carbon dioxide , arts as solvent
to make fresh plaster, industry as component
in a production of sugar from sugar beets,
and medicine as
a clear colorless solution ofcalcium hydroxid
e in water, formerly used as
an antacid
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Carbon dioxide (CO
2
) is the mostimportant
greenhouse gas
produced by humanactivities, primarily throu
gh
the
combustion
of fossil fuels. Itsconcentration i
n the Earth's
atmosphere hasrisen by more than 30% sinc
e the
IndustrialRevolution
.
Charles D. Keeling
was a pioneerin the monitoring of carbon dio
xide
concentrations in the atmosphere.
Atmospheric mixing ratios for carbon dioxide
are now higher than at any time in the last
800,000 years, standing at 380 parts per
million (
ppm
) compared to a pre
-
industrialhigh of 280ppm. The current rat
e of increases
is around 2ppm per year (see Figure 1).
http://www.eoearth.org/article/Greenhouse_gashttp://www.eoearth.org/article/Greenhouse_gashttp://www.eoearth.org/article/Combustionhttp://www.eoearth.org/article/Industrial_Revolutionhttp://www.eoearth.org/article/Industrial_Revolutionhttp://www.eoearth.org/article/Keeling,_Charles_D.http://www.eoearth.org/article/Keeling,_Charles_D.http://www.eoearth.org/article/Industrial_Revolutionhttp://www.eoearth.org/article/Industrial_Revolutionhttp://www.eoearth.org/article/Combustionhttp://www.eoearth.org/article/Greenhouse_gas7/31/2019 Prject Presentation
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Figure 1
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White mortar is the mortar that has whitecolor mostly use to create cement andalso help to improve acidic or alkali soil
It is easy to fine mostly all the market inThailand have it with a very low price.Or if you want to make it you also canget the shell and then burn it until itturn red then you put in a tin and
slowly pour water in the tin and thenslowly stir it till its mixed together and
then you just let it dry. The white sandypowder is white mortar
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MethodologyMaterial required: Clear plastic cup Water White mortar Tubes Sticks
Co2 sources (the easiest is humanexhaled)
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Step 1st
create limewater
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Step 2ndstart prove hypothesis
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Results and discussions
There are so many types of mortar but wechoose only white mortar to create thelimewater. Its not because of we dont try
other but we already try it with the redlime which is cheaper than white mortar
liquid that happen dont have anycharacter of the limewater that we want .to compare both of with we record thesolution that happen in the figures below
White mortar Red mortar
Smell Like normal calcium Like iron
Color of liquid Colorless White red seems like
pink
Clearness Nearly clear a little
bit cloudy
Very mud
Test with carbon
dioxide
Give white sediment
or milky solution
Still very mud
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As we record every changes that happen tothe limewater since we create it weve
found that it need 1 minute to sedimentsome mortar and create that colorlesssolution which we can separate it and getlimewater then after we blow co2 into it.the change start to occur to the solution.from colorless solution it starting to frommilky solution and left for a while its
going y sediment these sediment arecalcium carbonate which is very useful toour daily life
120
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0
20
40
60
80
100
120
30 seconds 1 minute 1.5 minutes 2 minutes
whie mortarlimewater
This graph above present the change of limewaterinto the milky solution in percentage
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0
20
40
60
80
100
120
30 seconds 1 minute 1.5 minutes 2 minutes
white mortar's solution
red mortar's solution
This graph above compare the percent of change that happen toboth while and after we blow the air into the solution
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ConclusionAfter weve done our investigation. We can
prove that the hypothesis is true, and wealso find out that if the amount of
limewater increase the rate of carbondioxide after the reaction is also moredecreasing. prove by the amount ofcalcium carbonate that happen in thereaction increase which mean it
decreasing more carbon dioxide. Todecrease more carbon dioxide we mustadd more limewater in the reaction togive the reaction more component .
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Thank you for
watching
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