Calculate the osmolarity and effective osmotic pressure of a solution of 145 mEq NaCl. Assume the reflection coefficient is 0.3, g = 1.85, and RT is 26 L-atm/mol. (Hint: convert mEq to mmol). How would this compare to a 1 mmol solution of urea with a reflection coefficient of 0 and a g of 1?
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Calculate the osmolarity and effective osmotic pressure of a solution of 145 mEq NaCl. Assume the...
1.a)The average osmotic pressure of sea water is 30 atm (atmospheres). Calculate the concentration of urea (CH4ON2) at 25 ° C that exerts the same pressure as seawater. R = 0.082 atm L/ mol K 1.b) There is a 1M solution of CH3COOH (acetic acid) in a total volume of 450 mL. What is the molality (m) of the solution? (ρ solution = 1.15 g / mL).
The osmotic pressure of an aqueous solution of a certain protein was measured in order to determine the protein’s molar mass. The solution contained 3.50-g of protein dissolved in sufficient water to form 5.00-L of solution. The osmotic pressure of the solution at 25oC was found to be 1.54-mmHg. (Hint: Remember to convert mmHg to atm) Calculate the molar mass of the protein.
A) Calculate the osmotic pressure of a solution containing 16.75 mg of hemoglobin in 15.7 mL of solution at 22 ∘C . The molar mass of hemoglobin is 6.5×104 g/mol. B) A 2.400×10−2M 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 999.4 mL . The density...
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...
8. Estimate the melting point and osmotic pressure of a 2.0-L aqueous solution that contains 0.18 mol of NaCl and 0.30 mol of MgCl2 at 25°C. (solution density=1.02 g/cm').
Calculate the percent saline (NaCl) solution that would be isotonic. The molecular weight of NaCl is 58.44 g/mol. Show your calculations. (Hint #1: start with normal cell and plasma osmolality, which is 0.3 Om/kg and convert that to percent saline. Hint #2: NaCl is ionic, so it dissociates in water).
Calculate the osmotic pressure of the following case at 298 K; (a) the left compartment contains 200 g of hemoglobin in 1L of solution, the right compartment contains pure water (b) the left contains the same hemoglobin solution as in part A, the left compartment initially contains 6g of NaCl in 1L of solution. Assume that the pH of the solution is such that the hemoglobin molecules are in the Na+ Hb- form. The molar mass of Hemoglobin is 65,000...
Question 20 0/5 pts The osmotic pressure of blood is 7.65 atm at 37°C. If blood were considered a solution of NaCl, what is the molar concentration of NaCl in blood? Assume an ideal van't Hoff factor Where: n = iMRT R is the ideal gas law constant (0.08205 bar mol K and T is the absolute temperature 23.2
100. mL of solution and is found to have an osmotic pressure of 28.1 mmHg at 20°C. Calculate the molar mass of the compound. (1 atm 760 mmHg) 1 0.102 g of an unknown non electrolyte solute is dissolved in enough water to make A. 663 g/mol B. 0.872 g/mol C. 1.15 g/mol D. 727 g/mol E. 1.10 x 102 g/mol
Question 21 of 52 Submit What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 1241 mL of solution at 25.0 °C? atm (1 2 3 C +/- x 100