If the initial concentration of ethanol was 13.5% v/v. What is the mole fraction of ethanol and water? (n water = 1.3348) and (n ethanol = 1.3639). Assuming (50 mL solution). n = refractive index. Density of Ethanol = 0.7892 g. Density of water = 0.997 g
If the initial concentration of ethanol was 13.5% v/v. What is the mole fraction of ethanol...
If the initial concentration of ethanol was 13.5% v/v. What is the mole fraction of ethanol and water? (n water = 1.3348) and (n ethanol = 1.3639). Assuming (50 mL solution).
What is the mole fraction of ethanol in a solution made by dissolving 29.2 g of ethanol, C2H5OH, in 53.6 g of water?
What is the mole fraction of ethanol in a solution made by dissolving 7.30 g of ethanol, C2H5OH, in 53.6 g of water?
9 ro what is the mole fraction of ethanol, CH CHOI, in a liquor that is 15.0% ethanol by mass? More Practices Calculate the molality of a solution that contains 25 g of H SO, dissolved in 40. g of H2O. What mass of water must be used to dissolve 20.0 grams of ethanol, C:HsOH, to prepare a 0.0500 molal solution of ethanol?
What is the mole fraction of ethanol in a solution made by dissolving 14.6g of ethanol, C2H5OH, in 53.6g of water? A) 0.106 B) 0.214 C) 0.0964 D) 0.272 Please show your work!!!!!!!!!!!! :)
The Boiling Point Diagram of Methanol-Water (Figure 5.6) shows Mole Fraction of Water versus Temperature, °C. Using the following atomic weights and the density of methanol of 0.792 g/ml, a 41.5 % v/v methanol in water solution (41.5 ml methanol and 58.5 ml water) is what mole fraction of water? Round to 2 decimal points with no units. Remember that the density of water is defined in the metric system as 1. (C = 12, H = 1, N =...
An aqueous solution is 34.0% by mass ethanol, CH3CH2OH. The mole fraction of ethanol in the solution is ? The mole fraction of nickel(II) bromide, NiBr2, in an aqueous solution is 2.00×10-2. The percent by mass of nickel(II) bromide in the solution is? The molality of potassium bromide, KBr, in an aqueous solution is 2.44 mol/kg. What is the mole fraction of potassium bromide in the solution?
g of solution. What is the mole fraction of of a 3 mol/dm3 concentration and 1.073 g/cm' density sodium chloride solution? (0.0567) I..Llit of sodium hydrogen carbonate at 20 °C, if 100 g solution . A+ 60 °C. 100
Solutions & Electrolytes Name Date Lab Meeting 1. What is the concentration of ethanol (C2H60) solution that was prepared by dissolving 50-500 g of ethanol into water to a final volume of 750,0 mL? Assume the solution has a density of 1.20 g/mL a. % (m/m) b. M cal equations Predict if the following solutions would conduct
Standard solutions of ethanol in water were prepared and the density was measured with the pycnometer and the refractive index with the Abbé refractometer, from the following data indicate and justify Which of the two methods would you choose to determine ethanol in a sample whose concentration approximate is 5000 ppm % Ethanol, w/w 0,0 0,5 1,0 2,0 4,0 Density. g/ml 0,9982 0,9973 0,9963 0,9945 0,9910 Refractive index 1,3330 1,3333 1,3336 1,3342 1,3354