Excessive levels of nitrates found in drinking water can cause serious illness. When nitrates are converted to nitrites in the body, the nitrites can interfere with the oxygen-carrying capacity of the blood, causing blueness of the skin. The EPA has determined that the maximum safe level of nitrate ion in water is 10 ppm. Suppose a sample of tap water was determined to have a nitrate ion concentration of 95 ppb. Assume the density of the solution is 1.00 g/mL.
(a) What is the concentration of nitrate ion in units of ppm? Is it safe to drink?
(b) What is the concentration of nitrate ion in units of mg/mL?
(c) What mass of nitrate ion is in 100.0 mL of this drinking water?
(d) How many moles of nitrate ion are in 100.0 mL of the water?
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