Sunday 17 July 2011

Change of mass and SA of meat in coke over 48 hours experiment 3 data








10. How to organize and present the data collected? (Results)


Observations(after 48 hours)
Raw chicken in coke: meat was softer than at the beginning and appeared to have increased in size. Coke solution also separated to form a yellowish translucent liquid with black sediments which collected at the bottom of the container

Raw chicken in vinegar: meat was extremely soft and fragile and broke apart easily when very little force was applied. Solution did not appear to have changed.

Cooked chicken in coke: Piece of meat turned a black colour on its surface. Solution did not appear to have changed

Cooked chicken in vinegar: Piece of meat appeared to have increased in size, solution did not appear to have changed.
11. What do the data mean? (Data Analysis)
From the data collected it can be seen that the effect that vinegar and coke have on meat are different. Cooked meat placed in coke turns black but does not change colour when placed in vinegar. Raw meat placed in coke causes the coke to separate, however raw meat placed in vinegar does not cause any change in the vinegar. Both liquids cause the pieces of meat to increase significantly in mass. Coke has a greater effect on the weight change of raw meat, while vinegar has a greater effect on the weight change of cooked meat. Raw chicken placed in coke increased in weight throughout the experiment and its increase in weight was a total of 120.00%. This is while raw chicken in vinegar only increased in weight up till 24 hours since the start of the experiment, and started to decrease in weight after that. However it still increased by 105.00% in weight overall. Cooked chicken in coke increased in weight the least by 22.92%, however its weight increased throughout the experiment. Cooked chicken in vinegar increased in weight the most overall by 130% and also increased in weight throughout the experiment.

12. What can you deduce from the discussion of your data analysis? (Conclusion)
Both raw and cooked meat that is place in coke continues to increase in mass throughout the timeframe of the experiment of 48 hours, however increase in mass generally slows down as the experiment continues. Vinegar has a different effect on meat when compared to coke and raw meat placed in vinegar initially increases in mass however starts to decrease in mass after 24 hours. Cooked meat placed in vinegar increased in mass throughout the experiment however increase in mass slows does as the experiment continues. Vinegar and coke have different effects on both cooked and raw chicken. 

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