An NaCl solution is prepared by dissolving 20.0 g NaCl in 150.0 g of water at 25°C. What is the vapor pressure of the solution if the vapor pressure of water at 25°C is 0.031 atm?
An NaCl solution is prepared by dissolving 20.0 g NaCl in 150.0 g of water at...
What is the vapor pressure at 25°C of a solution prepared by dissolving 20.0 g of CH 20 in 150.0 g of H2O? Pº H2O at 25°C = 23.7 mm Hg.
A 214 mL solution containing 23 g of a protein in toluene had an osmotic pressure of 0.053 atm at 27 oC. What is the molar mass (in g/mol) of the protein? Only enter a numerical value rounded to the nearest whole number in the answer box below. Do NOT type in the unit (g/mol). 2) An NaCl solution is prepared by dissolving 20.0 g NaCl in 150.0 g of water at 25°C. What is the vapor pressure of the...
A solution is prepared by dissolving 396 g of sucrose (C12H22O11) in 604 g of water. What is the vapor pressure of this solution at 30° C? (The vapor pressure of water is 31.8 mmHg at 30° C.)
What is the molarity of a solution prepared by dissolving 15.0 g NaCl in enough water to make 1.50 L of solution?
QUESTION 5 A solution is prepared by dissolving 5.0 g NaCl in 45.0 mL of water. The molar mass of NaCl is 58.5 g/mol and the density of water is 1.0 g/mL. What is the percent NaCl in the solution? O a. 5.0% b. 11% O C. 10% O d.58.5% Oe. None of these
Calculate the expected vapor pressure at 25 °C for a solution prepared by dissolving 235 g ethanol (M = 46 g/mol) in 500 mL of water. At 25 °C, the density of water is 0.9971 g/cm3 and the vapor pressure is 23.76 torr.
Calculate the vapor pressure of the solution made by dissolving 10.28 moles of NaCl in 1.4 Moles of water at 25.C? The vapor pressure of water a 25C is 23.8 mmHg. A. 12.1 mmHg B. 12.1 atm C. None of the above D. 2.23 mmHg E. 8.0 mmHg
A solution of sodium was prepared by dissolving 0.0309 g of NaCl in distilled deionized water and brought up to the mark in a 200 mL volumetric flask. 10.0 mL of this solution was diluted to 250.0 mL. What is the concentration (ppm) of sodium the final solution
A 2.550×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL. A) Calculate the molality of the salt solution. B) Calculate the mole fraction of salt in this solution. C) Calculate the concentration of the...
A solution is prepared by dissolving sucrose, C12H22O11, in water at 25 degrees Celsius. The mol fraction of water is ‘9958. What is the vapor pressure of the solution if the vapor pressure of water at 25 degrees celsius is 23.76 mmHg.