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If total hardness and alkalinity of a water sample are 200 mg/L as CaCO3 and 260 mg/L as CaCO respectively, what are the values of carbonate hardness and non-carbonate hardness?
  • a)
    200 mg/L and zero
  • b)
    Zero and 60 mg/L
  • c)
    Zero and 200 mg/L
  • d)
    60 mg/L and Zero
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
If total hardness and alkalinity of a water sample are 200 mg/L as CaC...
Respectively, what is the non-carbonate hardness of the water sample?

To determine the non-carbonate hardness, we need to subtract the carbonate hardness (alkalinity) from the total hardness.

Non-carbonate hardness = Total hardness - Carbonate hardness
Non-carbonate hardness = 200 - 260
Non-carbonate hardness = -60 mg/L as CaCO3

This result is not possible, as the non-carbonate hardness cannot be negative. It is likely that there is an error in one of the measurements or calculations.
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If total hardness and alkalinity of a water sample are 200 mg/L as CaCO3and 260 mg/L as CaCO3­respectively, what are the values of carbonate hardness and non-carbonate hardness?a)200 mg/L and zerob)Zero and 60 mg/Lc)Zero and 200 mg/Ld)60 mg/L and ZeroCorrect answer is option 'A'. Can you explain this answer?
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