![SOLVED: The total hardness is always listed in parts-per-million (ppm) of CaCO3 (or mg CaCO3 Kg HzO) Since the density of water is 1.0 g/mL, one ppm would be the same as SOLVED: The total hardness is always listed in parts-per-million (ppm) of CaCO3 (or mg CaCO3 Kg HzO) Since the density of water is 1.0 g/mL, one ppm would be the same as](https://cdn.numerade.com/ask_images/224e11ebb4b94aa28bf2d3dadb45f884.jpg)
SOLVED: The total hardness is always listed in parts-per-million (ppm) of CaCO3 (or mg CaCO3 Kg HzO) Since the density of water is 1.0 g/mL, one ppm would be the same as
![PPT - mg/L - milligrams per litre (10-3 g per litre) = mg per 1,000,000mg THUS = ppm PowerPoint Presentation - ID:4270418 PPT - mg/L - milligrams per litre (10-3 g per litre) = mg per 1,000,000mg THUS = ppm PowerPoint Presentation - ID:4270418](https://image2.slideserve.com/4270418/slide1-n.jpg)
PPT - mg/L - milligrams per litre (10-3 g per litre) = mg per 1,000,000mg THUS = ppm PowerPoint Presentation - ID:4270418
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