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stiv31 [10]
3 years ago
7

Aluminium extraction from its ore​

Chemistry
1 answer:
klasskru [66]3 years ago
8 0
Aluminium ore is called bauxite. The bauxite is purified to produce aluminium oxide, a white powder from which aluminium can be extracted.

The extraction is done by electrolysis. The ions in the aluminium oxide must be free to move so that electricity can pass through it. Aluminium oxide has a very high melting point (over 2000°C) so it would be expensive to melt it. Aluminium oxide does not dissolve in water, but it does dissolve in molten cryolite. This is an aluminium compound with a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.
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The Density of pure carbon in Diamond form is 3.52 g/cm^3. How many cubic inches would 23.7 moles of pure diamond occupy?
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Answer : The volume of pure diamond is 0.493inch^3

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First we have to calculate the mass of carbon or pure diamond.

\text{ Mass of carbon}=\text{ Moles of carbon}\times \text{ Molar mass of carbon}

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Now we have to calculate the volume of carbon or pure diamond.

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Now putting all the given values in this formula, we get:

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Volume = 80.8cm^3

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Volume = 0.061\times 80.8inch^3

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