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A sample of hard water has a hardness of...

A sample of hard water has a hardness of 510 ppm. Express the hardness in French and Clark.

Text Solution

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` ppm =0.07^@` Clark, `=0.1^(@)` French
Thus, 510 ppm`=510xx0.07^(@)` clark`=35.7^(@)` clark
Again, `1 ppm=0.1^(@)` French
So, `510 ppm=510xx0.1^(@)` French`=51^@` french
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