20 cm cube of a hydrocarbon on complete combustion gave 80 cm cube of CO2 and 100 centimetre cube of H2O at STP the empirical formula of the compound is ?
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Answers
Answer:
Explanation:The Ingredients
Aluminum has a very high melting point and strong bonding between atoms, so it doesn't readily dissolve in water. Instead, molten cryolite (Na3AIF6) is used.
The Process
diagram of extraction of aluminium from its ore
The pure aluminum is attracted to the cathode, which is a lining of graphite. The oxygen is attracted to the anode, and bubbles through the solution.
At the cathode, reduction takes place as electrons are gained:
Al3+ + 3e- ® Al
At the anode, oxidation takes place as electrons are lost:
2O2- ® O2 + 4e-
At the anode also, the oxygen formed will react with the anode (which is made of carbon) to form carbon dioxide. This means the anodes must be frequently replaced.
Aluminum has a very high melting point and strong bonding between atoms, so it doesn't readily dissolve in water. Instead, molten cryolite (Na3AIF6) is used.
The Process
diagram of extraction of aluminium from its ore
The pure aluminum is attracted to the cathode, which is a lining of graphite. The oxygen is attracted to the anode, and bubbles through the solution.
At the cathode, reduction takes place as electrons are gained:
Al3+ + 3e- ® Al
At the anode, oxidation takes place as electrons are lost:
2O2- ® O2 + 4e-
At the anode also, the oxygen formed will react with the anode (which is made of carbon) to form carbon dioxide. This means the anodes must be frequently replaced.