Flouride is known to prevent tooth decay so it is added to the city water supply for drinking. a medium sized city is populated with 150,000 people. each person uses approximately 660.0 l of water each day. how many kg of naf must be added to the water supply each year to have the required flouride concentration of 1.0 ppm?
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In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
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Flouride is known to prevent tooth decay so it is added to the city water supply for drinking. a med...
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