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23-01-2017
Chemistry

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a bar of soap measures 8 cm by 5 cm by 2 cm. Its mass is 90g. Calculate its density and predict whether this soap will float.

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scme1702 scme1702

30-01-2017

Density = mass / volume

volume = 8 x 5 x 2
volume = 80 cm³

Density = 90 / 80
Density = 1.125 g/cm³

The bar of soap will not float because it has a density greater than water, which is 1 g/cm³

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