Chemistry: Data Analysis for the most suitable material for a backpacker's towel

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        Chemistry Coursework        February 2005

Chemistry: Data Analysis for the most suitable material for a backpacker’s towel.

Method

In groups, we tested three different types of material (named pale blue, dark blue and brown) to find out which one would be more suitable as a backpacker’s towel. The criteria that would make a good backpacker’s towel would be aspects such as a low density, high absorpancy, rapid drying etc.

We weighed the fabric before wetting it and weighing it again. We then hung it on some suspended string and let a rotating fan dry them for fifteen minutes. After this time was up, we weighed the materials again in order to work out the drying rate, the absorpancy and the amount of water lost. We then recorded our results in a table (displayed further on) and analysed these to come to a conclusion.

Results

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*(my results are shown in the red font)

The formulas I used were as follows:

Absorbency – wet towel mass – dry towel mass/dry towel mass

Water Lost – Wet mass – Dry mass

Drying Rate – (Water Lost/Time [15]) x 60 to give [g/hr]

Density – Mass Dry/Area to give [g/cm squared]

Interpretation

My two scatter graphs show the absorbency and the drying rate of the three fabrics (pale blue, dark blue and brown).

The absorbency graphs show two anomalies, in comparison with the drying rate graph which shows five anomalies.

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