the hardness of NaOH in ppm is

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Washing soda (Na2CO3 .10H2O )is widely used in softening of hard water . If 1 L of hard water requires 0.0286 g of washing soda , the hardness of NaOH in ppm is
25
Nov
Washing soda (Na2CO3 .10H2O )is widely used in softening of hard water . If 1 L of hard water requires 0.0286 g of washing soda , the hardness of NaOH in ppm is the hardness of NaOH in ppm is Washing soda (Na2CO3 .10H2O )is widely used in softening of hard water . If 1 [...]
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