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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_gas


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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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