What mass of fluoride is contained in 5.00 mL of a 125 ppb fluoride solution if the density of the final solution is 1.000 g·mL-1?
What mass of fluoride is contained in 5.00 mL of a 125 ppb fluoride solution if...
An aqueous solution contains 0.100 M fluoride ions and 0.126 M hydrogen fluoride. 5.00 mL of 0.0100 M HCl is added to 25.0 mL of this solution. What is the pH of the final solution? The given value for Ka of HF is 3.5 x 10-4.
What mass (in grams) of fructose (C6H12O6) is contained in 125 mL of a 0.500 M fructose solution?
What mass of methane is contained in 60.0 mL of a 13.9% by mass solution of methane in hexane? The density of the solution is 0.611 g/ml O 2.35 g 8.498 5.105 O 1188 4.888
What mass of methane is contained in 60.0 mL of a 13.9% by mass solution of methan in hexane? The density of the solution is 0.611 g/mL. 4.88 g 2.35 g 11.8 g 8.49 g 5.10 g
2. What is the mass of active ingredient in a tablet that is 125 ppb in the active ingredient? The tablet weighs 175 mg.
1) In the laboratory, a student combines 32.6 mL of a 0.374 M zinc fluoride solution with 21.3mL of a 0.458 M silver fluoride solution. What is the final concentration of fluoride anion? 2) A 9.43 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If 29.7 mL of 0.450 M sodium hydroxide is required to neutralize the hydroiodic acid, what is the percent by mass of hydroiodic acid in the mixture? _____%...
12. a. What is the molarity of a solution made by mixing 125 mL of 5.00 M H,PO with 325 mL H30? b. What is the molarity of a solution make by mixing 75 mL of 0.25 M Na SO. with 150 mL H:07 c. What volume of 9.00 M HNO, is needed to make 675 ml of 0.750 M HNO,? d. What volume of 15.0 M H,PO4 is needed to make 750.0 mL of 3.0 MH,PO ? 13. A...
A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 301.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol?
In the laboratory a student combines 44.0 mL of a 0.403 M cobalt(II) fluoride solution with 17.5 mL of a 0.530 M iron(III) fluoride solution. What is the final concentration of fluoride anion ?
Express the concentration of a 0.0880 M aqueous solution of fluoride, F, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL. Number Number 0 0 ppm