Jaylaz4663 Jaylaz4663

16-04-2022
Chemistry

contestada

What is the concentration in ppm of sodium fluoride in tap water that has been fluoridated by the addition of 32 mg of naf for every 20 kg of solution?.

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indrawboy indrawboy

16-04-2022

ppm = mg/l = mg/kg

32 mg / 20 kg = 1.6 ppm

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