Silver ions can be found in some of the city  water piped into homes. The average concentration of  silver ions in city water is 0.028 ppm.     Parts per million(ppm)= (mass solute/mass solution) x 10 6      Parts per billion(ppb) = (mass solute/mass solution) x 10 9      Molarity = mol solute/Liter solution       Molality = mol solute/kg solvent   How many milligrams of silver ions would you ingest daily if you drank ten glasses (eight oz/glass) of city water daily?             ( 1 oz =29.57 mL) (b) How many liters of city water are required to recover       1.85 g of silver chemically?

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