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A solution is prepared by dissolving 138.50 g of sucrose, a nonelectrolyte, in 250.0 g of dionized water. The freezing point of the solution was determined experimentally to be -3.0 C.
a) Determine freezing point depression of the solution
b) Calculate molality of the solution
c) Calculate the molar mass of the solute using the data provided
What mass of sucrose should be combined with 452 g of water to make a solution with an osmotic pressure of 8.90 atm at 270 K?
Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced
Al(OH)3 + 3HCl ---> AlCl3 + 3H2O Determine the moles of acid neutralized if a tablet contains 0.200 mol Al(OH)3
A 125g metal block at a temperature of 93.2 degrees Celsius was immersed in 100g of water at 18.3 degrees celsius. Given the specific heat of metal (s= 0.900j/g x degrees celsius)
what is the mole fraction of hydrogen in a gaseous mixture that consists of 8.00 g of hydrogen and 12.00 g of neon in a 3.5 liter container maintained at 35.20 degrees celsius?
The gas was obtained by boiling liquid nitrogen stored in a 180.0 L tank. What volume of N2 is released at 0.955 atm of pressure and 25 degree celsius from a tank full of liquid N2 (d=0.808 g.mL)?
What reagents will convert benzene to aniline the most efficiently? Also what reagents will convert toluene to p-aminobenzoic acid
Calculate the values of the rate constant k assuming that the reaction is first order
Calculate the volume of 0.07216 M AgNO3 needed to react exactly with 0.3572 g of pure Na2Co3 to
How many grams of Mg(NO3)2 (Mm=147 g/mol) must be added to 405 g of water to make a solution with a colligative molality of 0.125 m?
A particular diatomic molecule which contains H exhibits a 16.95 cm^-1 spacing between its rotational lines and bond length of 141.5 picometers. Determine the mass (in amu) of the unknown atom in the molecule.
A solution of a dye in a 0.80 cm cuvette of concentration 1.25 x 10^-3 M had an absorbance of 0.115 at a particular wavelength. What was the molar absorptivity of the dye
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