The chemical formula of baking powder is NaHCO3 and chemical name is Sodium bicarbonate.
Friday, November 20, 2020
Why "meta" phosphoric acid always exit in a polymeric form?
Meta phosphoric
acids and their salts always
exist in dimeric, trimeric, tetrameric or in polymeric linear
as well as cyclic form, not in monomeric form due to the presence of weak (2p-3d- pi bond) bond the sodium
salts of trimer and hexamer is very famous salts.
How to pridict cyclic structure given compound/oxy-acid:
If
in given compounds number of
substituents are integral multiple of central atoms (except
P4O6,P4O10,P4S3,P4S10,(CH2)6N4,B4Cl4)
the compounds will be cyclic structure. And
number of central atoms must be three (3) or more than three.
For
example (1) ; H6P4O13 (4P+6OH+4O+3O(oxylinkage):
For
example (2) ; H3P3O9
(3P+3OH+3O+3O(oxylinkage):
For
example (3) ; H4P4O12 (4P+4OH+4O+4O(oxylinkage):
For
example (4) ; H6P6O18 (4P+6OH+6O+6O(oxylinkage):
Hexamer
of meta phosphoric acid exist as sodium salt which is called sodium metaphophate or sodium polymetaphosphate and
it is commercially known as "CALGON" and use as water softener.
Related Questions:
What is structure of (HPO3) metaphosphoric acid?
Meta Phosphoric acid exit as cyclic structure, the sodium salts of trimer and hexamer is very famous salts.
Cyclic trimer contains three
P-O-P Oxy linkage or bond
Hexamer of meta phosphoric acid exist as sodium salt which is called sodium metaphophate or sodium polymetaphosphate and it is
commercially known as "CALGON" and use as water softener.
Related Questions:
S-S bond is presents in? (IIT)
(a) alpha-(SO3)n (b) gama- (SO3)3 (c) H2S2O3 (d) H2S2O8
SOLUTION:
What is structure of SO3 (in solid state) at room temperature?
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