2. What is the concentration of NaBr, in ppm, of a solution composed of 35.7 mg...
what is the mass concentration in mg/L and ppm of a solution containing 1 g of solids in 10 L of methanol? methanol= 0.792 g/mL
A solution contains 20 ppm Ca+2. Express the Ca+2 concentration in the following terms: 21. A solution contains 20 ppm Cat2. Express the Ca+2 concentration in the following terms: a. g Cat2 in 1,000,000 mL water (mL = 0.001 L) b. g Cat2 in 100 mL water c. % Cat2 in the 100 mL water d. mg Ca 2/kg water (mg = 0.001 g = 0.000001 kg) e. molarity (M or moles Cat2/L).
What is the molar concentration of K+ in an aqueous solution that contains 793 mg/L (ppm) of K3Fe(CN)6? Do not use scientific notation in your answer.
1. The LD50 of cocaine is 95.1 mg/kg. Calculate the concentration of a solution, in molarity if they drank 1 liter of it. 100 g / 303.346 g/mol = 0.329 mol of cocaine. 0.329 mol/ 1 L= 0.329 M for molarity. Is this correct? 2. Find one other concentration unit [mass/mass (g/g) or mass/volume (g/ml) percentage, ppm or ppb] that would be toxic to a 85 kg person. Assume the density of a solution of your substance is the same...
(10)1. Find the concentration in (a) mg/L, (b) ppm, (c) ppb, and (d) moles/L (M), respectively, for thefollowing solution: 2 g of NaCl dissolved in 500 mL of water
A solution contains 4.7 mg of Cu2+ per 1.00 kg solution. Calculate the concentration in ppm. Enter your answer in the provided box.
if you have 6.72 g of mg(oh)2 what would the molar concentration of a solution be if you dissolved the mg(oh)2 in 432 ml of water
15. The riboflavin concentration in the unknown powder solution is 63.7 ppm. The total volume of the powder solution is 250.00 ml. What is the concentration in the tablet (mg ribo/tablet) if the mass of tablet = 0.6210 g and the mass of powder - 0.5699 g? O 17.4 22.5 O 17.35 Submit Answer Incorrect. Tries 1/2 Previous Tries Send Feedback This discussion is closed.
What is the concentration (in units of ppm) of sodium fluoride in tap water that has been fluoridated by the addition of 11.7 mg of NaF for every 20.0 kg of solution?
3. What is the concentration of Pb if PbBrais placed in a 0.05M solution of NaBr? (You may assume no complexes are formed.) 4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H+] of a 0.05M solution of Ca(HCOO)2 (calcium formate). (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed.) Ignore activites HOOD