Find the mole fraction of water
in a solution that is 36% ethanol by mass
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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?
A solution of glycerol, C3H5(OH)3, in 735 g of water has a boiling point of 104.4 °C at apressure of 760 mm Hg. What is the mass of glycerol in the solution? What is the mole fraction of the solute?
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?
1.Determine the molarity of a solution that contains 8.4 moles of ethanol dissolved in 4.7 liters of solution. Answer to 2 decimal places. 2.Determine the mole fraction of ethanol, C2H5OH (Molar mass = 46.08 g/mol) when 13.4 grams of ethanol is dissolved in 96.1 grams of water, H2O (Molar mass = 18.02 g/mol).
A solution is prepared by mixing 1.15 g of ethanol (CH3CH2OH) with 100. g of water. Calculate: (a) the percent by mass, (b) mole fraction, (c) molality, and (d) molarity of this solution. Assume that the density of the solution is 1.00 g/mL
Ethanol is often used as a fuel additive, but to function in most engines, the ethanol must be very pure and contain little water. It is difficult to distill ethanol and water above 90 mole % ethanol because at this concentration the vapor and the liquid phases of this mixture have the same composition. To get around this effect, benzene is often added to the mixture. The distillation column then separates the mixture into a very nearly pure ethanol stream,...
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?
Determine the molality of a solution of ethanol dissolved in water for which the mole fraction of ethanol is 0.246. Give your answer to 2 decimal places