How many grams of sodium fluoride should be added to 100,000 liters of drinking water containing 0.6 ppm of sodium fluoride to provide a recom- mended concentration of 1.75 ppm?
How many grams of sodium fluoride should be added to 100,000 liters of drinking water containing 0.6 ppm of sodium fluoride to provide a recom- mended concentration of 1.75 ppm?
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter64: Volumes Of Spheres And Composite Solid Figures
Section: Chapter Questions
Problem 22A: Compute the capacity, in liters, of the container shown. Round the answer to the nearest tenth...
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Transcribed Image Text:68. How many grams of sodium fluoride
should be added to 100,000 liters of
drinking water containing 0.6 ppm of
sodium fluoride to provide a recom-
mended concentration of 1.75 ppm?
69. If a city water supply has a limit of 250
ppm of nitrate ion, what is the maximum
amount of nitrate ion, in grams, that may
be present in a 10,000-gallon reservoir?
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