An aqueous solution of trichloroacetic acid, that is 4.00 percent by weight trichloroacetic acid, has a...
An aqueous solution of formic acid, that is 0.500 percent by weight formic acid, has a density of 0.9994 g/mL. A student determines that the freezing point of this solution is -0.212 °C. Based on the observed freezing point, what is the percent ionization of the acid and the value of Ka? Kf for H2O is 1.86 °C/m. % Ionized= Ka=
An aqueous solution of phosphoric acid, that is 0.500 percent by weight phosphoric acid, has a density of 1.0010 g/mL. A student determines that the freezing point of this solution is -0.129 °C. Based on the observed freezing point, what is the percent ionization of the acid and the value of Ka1? Assume that only the first ionization of the acid is important. Kf for H2O is 1.86 °C/m. % ionized = % Ka1 =
Determine the melting point of an aqueous solution containing 147 mg of saccharin (C7H5O3NS) added to 1.00 mL of water (density of water = 1.00 g/mL, Kf = 1.86°C/m). What is the freezing point of a 1.276 m aqueous solution of aluminum nitrate, Al(NO3)3? The Kfof water is 1.86°C/m.
A 0.100 m aqueous solution of a weak acid, HA, is prepared. The resulting solution has a freezing point of -0.189*C. Calculate the % ionization of the acid. The Kf for water =1.86*C/m.
1. 1200 mL aqueous solution of 45 g of ethylene glycol and 80 g of sucrose were prepared with a density of 1.37 g/mL. Assume that the solution behaves ideally. Notes: The vapor pressures of water and ethylene glycol at 20 °C are 17.54 torr and 0.06 torr, respectively, and Kb and Kf of water are 0.51 K/m and 1.86 K/m, at 25 °C respectively. a. What is the freezing point of this solution? b. What is the vapor pressure,...
2. What is the freezing point of an aqueous solution containing 69.5g NaNO3 (MM=85.00g/mol) dissolved in 175g water? Kf=1.86°C/m for water and assume "ideal" behavior. 10. An RV antifreeze is an aqueous solution containing 5.68 M proplyene glycol (MM=76.09 g/mol). If the density of the antifreeze is 1.080 g/mL, what is the molality of the solution?
1.00 m aqueous solution of trichloroacetic acid (CCl3COOH) ionizes according to the following equation: CCl3COOH (aq) ⇌ H+ (aq) + CCl3CO2- (aq) Determine the pH of the solution if it freezes at -2.53oC. (KF of water = 1.86oC/m) (Assume that the molality and the molarity of the solution are the same.)
An aqueous salt solution is formed by adding 61.65 g Iron (III) nitrate (solute) to water (solvent). What mass (in g) of water is used if the freezing point of the solution is -11.8 oC. Kf H2O = 1.86 oC/m
The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. What is the predicted freezing point if there were no...
Please solve step by step Automobile batteries contain aqueous sulfuric acid, H_2SO_4. A 3.75 M solution of aqueous sulfuric acid has a density of 1.230 g/mL. What is the mass percent H_2SO_04 in this solution? What is the molality of this solution?. When 0.500 g of an unknown nonelectrolyte is dissolved in 25.00 g of camphor, the freezing point of the solution is 8.68 degree C lower than the freezing point of pure camphor. Determine the molar mass of the...