Vapor pressure of this solution will be lower as HNO3 will not let the water vapor come out of this phase, had it been pure water no difficulties would have been there for water to come out as vapor.
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Please show detail of all steps 5. Calculate the mole fraction of water a 1.8 M...
1. An aqueous solution has a mole fraction of 0.119 KOH. What is the molarity of the solution? Assume that the density of the solution is 1.15 g/mL. Enter your answer to three significant figures and in units of molarity. 2. Glycerol (C3H8O3, 92.1 g/mol) is a nonvolatile nonelectrolyte substance. Consider that you have an aqueous solution that contains 28.6 % glycerol by mass. If the vapor pressure of pure water is 23.8 torr at 25oC, what is the vapor...
Hello guys I want help to solve those question please ! Calculate the mole fraction of phosphoric acid (H3PO4) in a 26.6% (by mass) aqueous solution. What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water? The molal freezing point depression constant for water is The concentration of CO2 in a soft drink bottled with a partial pressure of CO2 of 4.0 atm over the liquid at 25 °C...
1e. An aqueous solution has a mole fraction of solute of (4.73x10^-2). The density of the solution is (1.1400x10^0) g/mL and the solute has a molar mass of (8.020x10^1) g/mol. What is the Molarity of solute of this solution? 1f. At an unknown temperature a solution made of (7.740x10^0) g of a non-volatile solute dissolved in 100.0 g of water has a vapor pressure of (5.51x10^1) mm Hg. What is the vapor pressure of pure water (in mm Hg) at...
Calculate the mole fraction of phosphoric acid (H3PO4) in a 25.4% (by mass) aqueous solution. (Assume 750 mL of solution.) What is the molarity of the solution? What is the molality? (At 20 ° C, the density of phosphoric acid is 1.1462 g/mL and the density of water is 0.99823 g/mL.)
B. Commercial nitric acid comes in a concentration of 16.0 mol/L. The density of this solution is 1.42 g/mL Calculate the percent (w/w) of nitric acid, HNO3, in this solution. How many milliliters of the concentrated acid have to be taken to prepared 250 g of a solution that is 10.0%(w/w) HNO3? C. Citric acid, H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy. An aqueous solution...
Calculate the mass percent, molality and mole fraction of citric acid (H_3C_6H_5O_7) in a 1.37 M aqueous solution which has a density of 1.10 g/cm^3. (Assume a 1.00 L solution.) Citric acid is triprotic.
Please show detail of all steps 6. You dissolve 0.89 g of an organic alcohol into 93.5 g of deionized water to make an aqueous solution. The solution boils at a temperature of 100.32 °C. Use this data to ealeulate the molar mass (g/mol) of the acid. Also state two actions you could take to raise the boiling point even higher and explain each decision briefly. Hint: work backwards from AT5 to find mol solute... Continue your work onto the...
Please explain all steps. 5. At 80°C, an ideal liquid solution composed of A and B has a total vapor pressure of 456 torr and the mole faction of A in the vapor phase is 0.76. The pure vapor pressure of liquid B is 238 torr. (a) Determine the mole fraction of A in the liquid phase. (b) Find the vapor pressure of pure liquid A. (c) At what composition will the A-B solution boils under a reduced pressure of...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
1. Calculate M, m, mole fraction, mass %, ppb (mass/vol) for the following solution: 0.550 mg Fe in 1.4 L pure water (d = 1.0 g/mL) @ 4°C. Assume no volume change from the addition of Fe. 2. If an experiment involving this solution is carried out by changing its temperature and recalculating iron concentration, which concentration units above would you prefer, and which would you avoid and why?