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11. An amount of 44.2 mg of aspirin, CoHsO4 (MM: 180) is dissolved in 0.359 L...
Let’s consider a solution of 100 g of glucose (with a molar mass of 180 g/mol) dissolved in 1 L of water. a) What is the osmotic pressure of the solution at 25˚C? b) At what temperature will the solution freeze?
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The resulting solution melted at 176.0 C. What is the molecular mass of the compound? The melting point of pure camphor is 179.5 C. The freezing-point-depression constant for camphor Kf is 40.0 C/m. 7. A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make 0.355 L of solution. The osmotic pressure of the solution is 1.21 atm at...
Calculate the concentration in units of mg/L for oxygen dissolved in 1050.0 mL of water at 25 °C, if the partial pressure of O2 in gas phase in equilibrium with the water is 238.1 mm Hg. Assume the density of water =1 g/mL
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound dissolved in enough water to make 175 ml of solution at 25 degrees C what is the osmotic pressure of the resulting solution ?
A protein solution containing 80.0 mg of the protein (dissolved in water) displays an osmotic pressure of 319.88 Pa at 310.15 K. If the volume of the protein solution is 16.0 mL, what is the molar mass of the protein
A protein solution containing 90.0 mg of the protein (dissolved in water) displays an osmotic pressure of 319.88 Pa at 310.15 K. If the volume of the protein solution is 18.0 mL, what is the molar mass of the protein?
11. Two similar amount of solid calcium carbonates are dissolved separately in 1 L water and in 1 L of CaCl2 0.005 M solution. If the solubility product constant (Ksp) of CaCO3 is known from the textbook, a) What do you know about 'Common Ion Effect' in precipitation? b) What is the solubility (s) of CaCO3 in water at 25°C? Write the ionization reaction in water. c) What is the solubility(s) of CaCO3 in 0.005 M CaCl2 solution, d) By...
A protein solution containing 90.0 mg of the protein (dissolved in water) displays an osmotic pressure of 319.88 Pa at 310.15 K. If the volume of the protein solution is 13.0 mL, what is the molar mass of the protein? g/mol
When 10.0 mg of sucrose is dissolved in enough water to make 100.0 mL of solution at 25.00 °C, an osmotic pressure of 5.43 mmHg is measured. What is the molar mass of sucrose? Show your work, and provide your answer in g/mol.
What is the concentration (in mg/L) of dissolved O, in blood (or water) at this partial pressure and a normal body temperature of 37°C? The solubility of O2 in water at 37°C and 1atm partial pressure is 1.93 x 10 mol/L Express your answer using two significant figures. O AXO ? 0] mg/L Submit Request Answer