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Concentration Of The Sucrose Solution Biology

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All the method is referred to the sheet given. In order to dilute1.0 mol dm-3 of sucrose solution given to bring forth 0.2 mol dm-3 of sucrose solution, 0.3 mol dm-3 of sucrose solution, 0.4 mol dm-3 of sucrose solution and 0.5 mol dm-3 of sucrose solution, the expression below is used ;

M1V1 = M2V2

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For illustration:

To bring forth 0.2 mol dm-3 of sucrose solution with volume of 20cm3

M1 ( initial concentration of sucrose solution ) = 1.0 mol dm-3

V1 ( initial volume of sucrose solution ) = ?

M2 ( concluding concentration of sucrose solution ) = 0.

2 mol dm-3

V2 ( initial volume of sucrose solution ) = 20 cm3

M1V1 = M2V2

mol dm-3 ) V1 = ( 0.2 mol dm-3 ) ( 20 cm3 )

V1 = ( 0.2 mol dm-3 ) ( 20 cm3 )

( 1.0 mol dm-3 )

V1 = 4 cm3

RESEARCH QUESTIONS

Does verifying the concentration of sucrose solution would impact the length of murphy strips and apple strips after 125 proceedingss?

Does the volume of the sucrose solution affected?

Hypothesis

If the concentration of the sucrose solution is high, which is a hypertonic concentration, the length of murphy strips and apple strips will diminish because the H2O molecules moved out from the murphy and apple tissue to the sucrose solution.

This causes a lessening in the length of murphy and apple strips. Therefore, the murphy and the apple strips become flaccid. The volume of the sucrose solution will increase coincident due to the decreased of murphy and apple lengths.

If the concentration of the sucrose solution is low, which is a hypotonic concentration, the length of murphy and apple strips size will increase and go bombastic because the H2O moved out of the murphy and the apple cells. The volume of the sucrose solution will diminish at the same time with the decreased of murphy and apple lengths.

If the concentration of the sucrose solution is same as the concentration of murphy and apple tissues, there will be no alteration on the length of murphy and apple strips because the motion of H2O molecules into and out of the murphy and apple cells is the same. The volume of the sucrose solution besides will non alter. This called isotonic.

Variables:

Independent variable:

Independent variable

Concentration of saccharose

Dependent variable

Final length of murphy and apple strips after 125 proceedingss

Changeless variable

Initial length of apple and murphy strips

Initial volume of sucrose solution

Five strips of apple and murphy are put in each trial tubing

Raw Data

Concentration of sucrose solution ( mol dm-3 )

Volume of 1.0 mol dm-3 of sucrose solution ( cm3 )

Volume of distilled H2O ( cm3 )

0.2

4

16

0.3

6

14

0.4

8

12

0.5

10

10

1.0

20

0QUALITATIVE Datas

Table 1: The volume of sucrose solution and volume of distilled H2O needed

to thin the 1.0 mol dm-3 of sucrose solution.

Observation on the alterations occurs to the apple strips and murphy strips.

molar concentrations of sucrose solution ( mol dm-3 )

0.2

0.3

0.4

0.5

1.0

Change in length

thirster

thirster

Lapp

shorter

shorter

Change in degree of

sucrose solution

lessening

lessening

same

addition

addition

Texture and visual aspect

turgid

less bombastic

house

soft

soft

Table 2: Changes occur to apple strips after the experiment

molar concentrations of sucrose solution ( mol dm-3 )

0.2

0.3

0.4

0.5

1.0

Change in length

thirster

thirster

same

same

shorter

Change in degree of

sucrose solution

lessening

lessening

lessening

lessening

addition

Texture and visual aspect

crunchy

crunchy

crunchy

crunchy

soft

Table 3: Changes occur to potato strips after the experiment

QUANTITATIVE DATA

length of apple strips, centimeter ( ±0.05cm )

molar concentration of sucrose solution

strip 1

strip 2

strip 3

strip 4

strip 5

( mol dm-3 )

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

0.2

4.0

4.1

4.0

4.2

4.0

4.1

4.0

4.0

4.0

4.2

0.3

4.0

4.3

4.0

4.1

4.0

4.1

4.0

4.2

4.0

4.1

0.4

4.0

3.9

4.0

4.0

4.0

4.1

4.0

4.0

4.0

3.9

0.5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

1.0

4.0

3.7

4.0

3.7

4.0

3.8

4.0

3.8

4.0

3.8

Table 4a: The length of 5 apple strips before and after 120 proceedingss.

molar concentration of sucrose solution

( mol dm-3 )

Initial volume of sucrose solution,

( ± 0.05cm3 )

Concluding volume of sucrose solution,

( ± 0.05cm3 )

0.2

20.00

18.00

0.3

20.00

17.00

0.4

20.00

16.50

0.5

20.00

18.00

1.0

20.00

20.50

Table 4b: The initial and concluding volume of sucrose solution for apple strips

length of murphy strips, ( ±0.05cm )

molar concentration of sucrose solution

strip 1

strip 2

strip 3

strip 4

strip 5

( mol dm-3 )

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

0.2

4.0

4.4

4.0

4.5

4.0

4.2

4.0

4.1

4.0

4.1

0.3

4.0

4.0

4.0

4.1

4.0

4.1

4.0

4.1

4.0

4.1

0.4

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

0.5

4.0

3.8

4.0

3.8

4.0

3.9

4.0

3.7

4.0

3.7

1.0

4.0

3.5

4.0

3.5

4.0

3.6

4.0

3.7

4.0

3.4Table 5a: The length of 5 murphies strips before and after 120 proceedingss

molar concentration of sucrose solution

( mol dm-3 )

Initial volume of sucrose solution,

( ± 0.05cm3 )

Concluding volume of sucrose solution,

( ± 0.05cm3 )

0.2

20.00

19.00

0.3

20.00

20.00

0.4

20.00

20.00

0.5

20.00

21.00

1.0

20.00

21.00

Table 5b: The initial and concluding volume of sucrose solution for murphy strips

DATA Processing

Average = length of ( strip 1 + strip 2 + strip 3 + strip 4 + strip 5 )

5

length of apple strips, ( ±0.05cm )

molar concentration of sucrose solution

strip 1

strip 2

strip 3

strip 4

strip 5

Average

( mol dm-3 )

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

0.2

4.0

4.1

4.0

4.2

4.0

4.1

4.0

4.0

4.0

4.2

4.0

4.1

0.3

4.0

4.3

4.0

4.1

4.0

4.1

4.0

4.2

4.0

4.1

4.0

4.2

0.4

4.0

3.9

4.0

4.0

4.0

4.1

4.0

4.0

4.0

3.9

4.0

4.0

0.5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

1

4.0

3.7

4.0

3.7

4.0

3.8

4.0

3.8

4.0

3.8

4.0

3.8

Table 6a: Average length of apple strips

Difference of apple strips length = Final reading – initial reading

molar concentration of sucrose solution

( mol dm-3 )

Initial reading, ( ±0.05cm )

Final reading, ( ±0.05cm )

Difference in reading ( ±0.1cm )

0.2

4.0

4.1

0.1

0.3

4.0

4.2

0.2

0.4

4.0

4.0

0.0

0.5

4.0

4.0

0.0

1.0

4.0

3.8

-0.2

Table 6b: Difference in reading of the apple strips

Average = length of ( strip 1 + strip 2 + strip 3 + strip 4 + strip 5 )

5

length of murphy strips, ( ±0.05cm )

molar concentration of sucrose solution

strip 1

strip 2

strip 3

strip 4

strip 5

Average

( mol dm-3 )

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

initial

concluding

0.2

4.0

4.4

4.0

4.5

4.0

4.2

4.0

4.1

4.0

4.1

4.0

4.3

0.3

4.0

4.0

4.0

4.1

4.0

4.1

4.0

4.1

4.0

4.1

4.0

4.2

0.4

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

0.5

4.0

3.8

4.0

3.8

4.0

3.9

4.0

3.7

4.0

3.7

4.0

3.8

1

4.0

3.5

4.0

3.5

4.0

3.6

4.0

3.7

4.0

3.4

4.0

3.5

Table 7: Average length of murphy strips

Difference of murphy strips length = Final reading – initial reading

molar concentration of sucrose solution

( mol dm-3 )

Initial reading, ( ±0.05cm )

Final reading, ( ±0.05cm )

Difference in reading ( ±0.1cm )

0.2

4.0

4.3

0.3

0.3

4.0

4.2

0.2

0.4

4.0

4.0

0.0

0.5

4.0

3.8

-0.2

1.0

4.0

3.5

-0.5

Table 7b: Difference in reading of the murphy strips

Decision

If the concentration of the sucrose solution is high, which is a hypertonic concentration, the length of murphy strips and apple strips will diminish because the H2O molecules moved out from the murphy and apple tissue to the sucrose solution. This causes a lessening in the length of murphy and apple strips. Therefore, the murphy and the apple strips become flaccid. The volume of the sucrose solution will increase at the same time with the decreased of murphy and apple lengths. The hypertonic solution for apple strips is at 0.2M and 0.3M, whereas for the murphy strips is at 0.2M and O.3M besides.

If the concentration of the sucrose solution is low, which is a hypotonic concentration, the length of murphy and apple strips size will increase and go bombastic because the H2O moved out of the murphy and the apple cells. The volume of the sucrose solution will diminish at the same time with the decreased of murphy and apple lengths. The hypotonic solution for apple strips is at 0.5M and 1.0M, whereas for the murphy strips is at 1.0M.

If the concentration of the sucrose solution is same as the concentration of murphy and apple tissues, there will be no alteration on the length of murphy and apple strips because the motion of H2O molecules into and out of the murphy and apple cells is the same. The volume of the sucrose solution besides will non alter. This called isotonic. The isosmotic solution for the apple strips is at 0.4M, whereas for the murphy strips is 0.4M and 1.0M.

The hypothesis is accepted.

Restriction

Suggestion

Mistake may happen during the measuring to find the length of murphy strips.

the measuring should be repeated for at least 3 times to minimise the mistake in the experiment.

Mistake may happen while taging the degree of sucrose solution due to the hapless method of mensurating that is by ocular observation.

A more precise tool should be used to acquire the most precise informations.

. The surface of potato strips may non flat. So even though we controlled the initial length, really the initial length are non same for each murphy strips

the mass of murphy strips in order to detect the alterations of elongation of the murphy strips in each solution to acquire more accurate reading as the electronic mass balance has a little uncertainness compared than utilizing a swayer to mensurate the elongation.LIMITATIONS AND SUGGESTIONS

Cite this Concentration Of The Sucrose Solution Biology

Concentration Of The Sucrose Solution Biology. (2017, Jul 07). Retrieved from https://graduateway.com/concentration-of-the-sucrose-solution-biology-essay/

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