What is the equilibrium concentration of 1,1,2-trichloroethane in the air over a solution of 100 ppm? Provide answer in mg/cubic meters.
What is the equilibrium concentration of 1,1,2-trichloroethane in the air over a solution of 100 ppm?...
100 mL of aqueous solution containing 2,4,6-trinitrotoluene (TNT) at an initial concentration of 0.05 ppm is shaken with 10 mL hexane. After the phase separation, it was determined that the organic phase has 0.4 ppm. What is the partition coefficient, and what is the percent extracted? If the equilibrium concentration (rather than initial concentration) is 0.05 ppm, this would simplify the calculation. What would then be the partition coefficient and percent extracted? (Please answer or provide something for the second...
QUESTION 12 The concentration of carbon monoxide (CO) in cigarette smoke reaches 400 ppm. For this particular value determine the concentration in milligrams per cubic meters, at 25 0c and 1 atm. 0 4.57 mg/m O 457 mg/m3 O 4057 mg/m3 45.7 mg/m3
2. What is the concentration of NaBr, in ppm, of a solution composed of 35.7 mg NaBr and 15.7 g of water.
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.
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 4.7 mg of Cu2+ per 1.00 kg solution. Calculate the concentration in ppm. Enter your answer in the provided box.
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).
A. 0.191 g of steel was dissolved in acid and diluted to 100 mL with water. The solution was found to contain 7.7 ppm Mn by atomic absorption analysis. What was the weight percent Mn in the steel? B. A multivitamin tablet with a label value of 13 mg Zn per tablet was dissolved in acid and diluted to 100 mL with water. What is the theoretical Zn concentration of the solution? Answer in ppm.
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.
Suppose you find the concentration in your home is 57 ppm by volume at 1.00 atm pressure and 25 °C. What is the concentration in mg/L and in ppm by mass. (The average molar mass for dry air is 28.96 g/mol at 1.00 atm pressure and 25 °C.) what is Concentration = mg /L what is Concentration = ppm