You wish to prepare 500.0 mL of a 550.0 ppm w/v fluoride (MW = 18.9984 g/mol) solution. How many grams of beryllium fluoride (BeF2 MW = 47.01 g/mol) are needed to prepare this solution? Assume the final solution has a density of 1.00 g/mL.How many grams of beryllium fluoride are needed to prepare 500.0 mL of 0.419 M Fâ?
