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Selasa, 17 Desember 2013

PRACTICE ABOUT ACID AND BASE


ACID and BASE



I.                   Aim
1.)    To Identification of Acid and Base
2.)    To differentiate acid compund from base compund
        
II.                Basic Theory
Acid  and Base compounds can be identified safely by using indicators. Indicators are color substance whic show different colors in acidic and basic conditions common indicators are litmus papers, acid base solution indicators and natural indicators.

Acid – base compounds can be identified by using litmus paper, we can observe the changing of litmus paper color when it reacts with the solution. Red itmus paper which is put into acidic solution will remain red. If the paper is put into  basic solution ( alkali ), it will turn into red, while if it is put into basic solution, it will remain blue.

Acid – base indicator solution is chemical substance which shows different colors in acidic and basic solution. The characteristics is used to identify acid and basic properties.

Natural indicators can also identify acidic and alkali solution. These indicators are made of species, flowers, and fruits.

III.             Tools And Materials

a.)  Tools
·         Pippette
·         A beaker glass
·         Chemical of pallette
·         A set of chemical bowl
·         A knife
·         Some water
·         Tissue

b.)  The Materials Of Acid – Base Indicators
·    Red Litmus ( LR )
·    Blue Litmus ( LB )
·    Methyl Orange ( MO )
·    Phenolphthalein ( PP )
·    Methyl Red ( MR )
·    Bromothymol Blue ( BTB )
·    Turmeric
·    Hibidicus Flower
c.)  The Materials Of Acid – Base Solution
·     HCl
·     NaOH
·     Orange juice
·     Lye
·     Lime Water
·     Star Fruit
·     Solution of A
·     Solution of B
·     Solution of C
·     Solution of D
·     Solution of E
·     Solution of F
·     Solution of G

IV.             Steps

1.  First, prepare all of tools and material which we need to this
    experiment.
2.  Then. Clean the chemical of pallette
3.  Third, In the chemical of pallette fill the first hole with red litmus paper ( LR ),  the second hole with blue litmus     ( LB ),  the third hole with Methyl Orange ( MO ). The Fourth hole with Phenolphthalein ( PO ),  The Fifth hole with Methyl Red ( MR ),  The Sixth hole with Bromothymol Blue ( BTB ),  The Seventh hole with turmeneric, and the last hole with hibidicus flower.
4.  Next, drop the HCL solution in every hole in the chemical pallette ( Max. 3 dropped )
5.  Then, observe and write down the change colors which happened in the every acid - base indicators.
6.  After that, do the same activities from the 2 nd until 5 th by turns to the other solutions.
7.  Finally, arrange the chemical report as the result of experiment.

V.                The Result Of Experiment


    
No
Solution
LR
LB
MO
PP
MR
BTB
Turmeric
Rubidius
1
HCl
Red
Red
Red
White
Red
Orange
Yellow
Pink
2
NaOH
Blue
Blue
Orange
Purple
Yellow
Blue
Orange
Green
3
Orange Juice
Red
Red
Red
White
Red
Yellow
Yellow
Pink
4
Lye
Red
Blue
Orange
White
Red
Orange
Yellow
White
5
Lime Water
Blue
Blue
Orange
Purple
Yellow
Blue
Brown
Green
6
Star Fruit
Red
Red
Red
White
Red
Orange
Yellow
Pink
7
Solution Of A
Red
Red
Red
White
Red
Orange
Yellow
Pink
8
Solution Of B
Red
Blue
Orange
White
Red
Orange
Yellow
White
9
Solution Of C
Blue
Blue
Red
Purple
Yellow
Blue
Brown
Green
10
Solution Of D
Red
Red
Red
White
Red
Orange
Yellow
Red
11
Solution Of E
Red
Blue
Red
Purple
Red
Orange
Yellow
White
12
Solution Of   F
Red
Red
Red
White
Red
Orange
Yellow
Pink
13
Solution Of G
Blue
Blue
Red
Purple
Yellow
Blue
Brown
Green
VI.             Conclusion


1.)    The Acid Solutions are :
v    HCl
v    Orange Juice
v    Star Fruit
v    Solution of A
v    Solution of B
v    Solution of F

2.)    The Base Solutions are :
v        NaOH
v        Lime Water
v        Solution of C
v        Solution of G

3.)    The Netral Solutions are :
v        Lye
v        Solution of B
v        Solution of E



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