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Why we write (Al2so4)3 not (Al2So4)2 ?

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Topic: Why we write (Al2so4)3 not (Al2So4)2 ?  (Read 4831 times)

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Offline Alok

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Why we write (Al2so4)3 not (Al2So4)2 ?
« on: July 12, 2007, 01:55:50 AM »


Hi All,

I am again asking your favour. As I need to know, why we always write
(Al2So4)3 and not (Al2So4)2 ?

hare krishna
Alok
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Offline AWK

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Re: Why we write (Al2so4)3 not (Al2So4)2 ?
« Reply #1 on: July 12, 2007, 02:17:08 AM »
We should write
Al2(SO4)3
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Offline farrukh_as

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Re: Why we write (Al2so4)3 not (Al2So4)2 ?
« Reply #2 on: July 12, 2007, 07:14:23 AM »
yea we dont write (Al2So4)3  we write Al2(SO4)3 because Al (Aluminum) has a charge of 3+ and sulfate ion has a charge of 2- so if we cross multiply the charges it gives u Al2(SO4)3

Al3++SO42-----> Al2(SO4)3

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Offline Alok

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Re: Why we write (Al2so4)3 not (Al2So4)2 ?
« Reply #3 on: July 12, 2007, 08:03:25 AM »


Thank you all..

hare krishna
Alok
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