1 litre hard water contain 12 MG MG 2 + mil equivalent of washing soda is required to remove hardness is
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chemical Reactions: Mg2++ Na2CO3----> MgCO3+ 2Na+
1 g eq 1 g eq
= 12 g = 1000 meq
= 12000 mg.
that is 12 mg Mg2+= 1 mili
equivalent Na2CO3(Washing soda).
1 g eq 1 g eq
= 12 g = 1000 meq
= 12000 mg.
that is 12 mg Mg2+= 1 mili
equivalent Na2CO3(Washing soda).
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26
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