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TitleInvestigation of the price paid for a washing powder has any
affect on the performance in the digestion of protein.
AimInvestigation of the price paid for a washing powder has any
affect on its performance in the digestion of protein by measuring rate
Cheap Custom Essays on Investigation of the price paid for a washing powder has anyaffect on the performance in the digestion of protein.
of reaction.
Hypothesis
More price paid for a washing powder have more rate of reaction. It
gives higher performance in the digestion of protein. So, the process of
digestion occurs quickly with more price paid washing powder.
Price paid for a washing powder ยต Rate of reaction
More price paid washing powder contain more enzymes than others. Enzymes speeding up the rate at which reaction occur. Reaction can be controlled the amount of enzyme available determines how fast a reaction proceed. I predict that the rate of reaction of biological washing powders can vary as shown as below.
Persil (0p)Cyclon (16p)Ultima (14p)Tesco value (6p)
Apparatus used
§Biological washing powders (10 %, 7 cm per each)-contain enzymes to speeding up the reaction.
1.Persil
.Cyclon (Safeway's own brand)
.Ultima (Waitrose's own brand)
4.Tesco value
5.Distilled water used as a control (7 cm)
§5 Photographic filmstrips - used as a substrate.
§Water bath at 40°C - used to keep the temperature constant
§Buffer solution PH(1 cm) - used to keep the PH constant.
§10 cm-graduated pipette - used to measure the washing powder solution accurately.
§Pipette filler- used to suck the solution of washing powder via pipette.
§1 cm syringe- used to collect buffer solution.
§1 beaker- used to collect distilled water to wash pipette after using different washing powder solutions.
§Stop clock- used to measure the time taken to finish the reaction.
§5 test tubes
§1 test tube rack- used to hold the test tubes.
§Wax pencil- used to label the test tubes.
Method
vAll apparatus were collected.
vTest tubes 5 were taken and labelled from 1 to 5 by using wax
chinograph pencil.
v7cm of Persil, Cyclon, Ultima, Tesco value washing powders and distilled water was poured into 5 test tubes respectively by using 10 cm-graduated pipette. (Before the washing powder solutions were taken into the pipette the bottle was shaken well to ensure the powder was fully dissolved)
v1cm of PHbuffer solution .was added into each test tube by using 1 cm graduated pipette.
vEach test tube was shaken properly by using different rubber bungs to mix the solutions.
vA photographic filmstrip was inserted into each test tube, which was fully covered by the solution.
vThe 5 test tubes were placed into 40°C water bath with test tube rack.
vAt the same time the stop clock was started and the photographic filmstrips were observed.
vThe observations were recorded within everyminutes to find the time taken for the reaction finish in each washing powder with protein (in this experiment gelatine).
vDistilled water was used as a control.
vThis experiment was carried outtimes to ensure that the results were reliable.
vA 55°C water bath was used the repetition experiment to keep the temperature constant.
vTwo results table were obtained.
Diagram
Result Table 01 & 0
No of test tubesType of washing powders (Biological)Price of washing powders in (£)Time taken (Min)1st experimentTime taken (Min) nd experiment 01Persil 0.014 40Cyclon-Safeway's own brand0.160 080Ultima-Waitrose's own brand0.140 5404Tesco value 0.064 0605Distilled water- control________________ _______
Calculation
Experiment 01
Rate of reaction = 1/Time
1.Persil = 1/14
= 0.0714 (4d.p)
.Cyclon = 1/0
= 0.0500 (4d.p)
.Ultima= 1/0
= 0.0 (4d.p)
4.Tesco= 1/4
= 0.08 (4d.p)
Experiment 0
Rate of reaction = 1/Time
1. Persil = 1/4
= 0.08 (4d.p)
.Cyclon = 1/08
= 0.150 (4d.p)
.Ultima = 1/54
= 0.0185 (4d.p)
4.Tesco= 1/06
= 0.1667 (4d.p)
5.Distilled water- None
Summary Result Table
No of test tubesType of washing powders (Biological)Price of washing powders (£)Time taken (Min) 1st experimentRate of reaction (1/Time)Time taken(Min) nd experimentRate of reaction(1/Time) 01Persil 0.0 140.071440.080Cyclon-Safeway's own brand0.16 00.05080.1500Ultima- Waitrose's own brand0.14 0 0.0540.018504Tesco value 0.06 4 0.08060.166705Distilled water- control__________________________________
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