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when the amount of alumina in the hall heroult electrolytic cell decreases to a certain level then the voltage of the cell abruptly increases which leads to the failure of the cell.this effect is known as anode effect.
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What ionic charge does an ion that comes from Al have?
An Al ion would have a +3 charge.
Which ion does A1 typically form?
There is no element that has the formula A1. There is aluminum, which as the chemical formula Al. The ion that typically comes from it is Al3+.
What would the overall potential for 3Ag2S 2Al(s) -- Al2S3 6Ag(s)?
3Ag2S + 2Al(s) ==> Al2S3 + 6 Ag(s)Ag^+ + e- ===> Ag(s) reduction @ cathode Eº=0.80 VAl ===> Al^3+ + 3e- oxidation @ anode Eº=-1.66 VOverall potential = Eºcell = 0.80 - (-1.66) = 2.46 V
Which equation correctly represents the first ionization of aluminum?
The first ionization of aluminum is Al(g) -> Al+(g) + e-
Is Aluminum found as Al or Al2?
Al
What is role of graphite rod in electrometallurgy of Al?
In the electrometallurgy of aluminium, a fused mixture of purified alumina (Al 2 O 3 ), cryolite (Na 3 AlF 6 ) and fluorspar (CaF 2 ) is electrolysed. In this electrolysis, graphite is used as the anode and graphite-lined iron is used as the cathode. During the electrolysis, Al is liberated at the cathode, while CO and CO 2 are liberated at the anode, according to the following equation. If a metal is used instead of graphite as the anode, then O 2 will be liberated. This will not only oxidise the metal of the electrode, but also convert some of the Al liberated at the cathode back into Al 2 O 3 . Hence, graphite is used for preventing the formation of O 2 at the anode. Moreover, graphite is cheaper than other metals.
What are the chemical reactions that take place during the electrolysis of molten aluminum chloride?
The half reactions are Al+3 + 3 e- -> Al (at the cathode) and 2 Cl-1 -> Cl2 + 2 e- at the anode. Applying the proper integers by which to multiply the half reactions so that the number of electrons received at the cathode equals the number of electrons given up at the anode gives an overall reaction of 2 Al+3 + 6 Cl-1 -> 2 Al + 3 Cl2.
Are there English and Arabic cognates?
There are probably a few, because some mathematical, chemical, and item terms in English derive originally from Arabic words. (Chemistry comes from al-Kimia, Algebra comes from al-Jabr, Admiral from Amir al-Bahr, Cotton from the al-Qoton, Apricot from al-Barqoq, etc.) Conversely, many modern and physics terms in Arabic derive originally from English words. (al-Elektron comes from Electron, al-Kombyuter comes Computer, at-Telfiziyun comes from Television, al-Mol comes from Mol, etc.) Arabic for "alcohol", for example, is "al-kahul", which literally means related to "kohl" -- a dark pigment used in male eyeshadow.
What ionic charge does an ion that comes from Al have?
An Al ion would have a +3 charge.
What word is Al-khowarizimi credited with creating?
The word algebra comes from the Arabic al-jabr, which was coined first by Muhammad ign Musa al-Khwarizmi. His name is also where the word algorithm comes from.
What does fomalhaut mean?
The name Fom al-Haut comes from scientific Arabic فم الحوت fam al-ħūt (al-janūbī) "the mouth of the (southern) fish/whale"From Wikipedia.
Algebra get its name?
It comes from the Arabic word al-jabr, which means reunion.
Which festival comes after the one month of fasting?
It is called Eid al Fitr
Where did Hurricane Katrina effect?
new Orleans la,biloxi ms,and mobile al
Algebra comes from what language?
Alebra comes from the Arabic language "Al-jabr" . Basically it means "what you do to one side of the equation, you do to the other"
What region invented Algebra?
Arabs and Babylonians. Algebra comes from the Arabic 'al-jabr'.
Where did algebra get discovered?
The middle east: algebra comes from the Arabic "al-jabr wa".
