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If volumes are additive and 80.0 mL of .40 M sodium chloride is mixed with 120 mL of a calcium chloride solution to give a new solution in which [Cl^-1] is .52 M, what is the concentration of the calcium chloride used to make the new solution?
Determine symmetry types for all normal modes of vibration for NH3, which has trigonal pyramidal geometry C3v. Use the internal coordinates analysis method, i.e. 3 bond stretching, deltaD
What is the vapor pressure (in torr) above a solution prepared by mixing 47.89 g of water, H2O, with 47.65 g of ethanol, C2H5OH, at 63.50 °C?
Describe an apparatus by which azeotrope formation can be used to drive the equilibrium toward the products, thus maximizing the yield.
Arrange these compounds in order of increasing boiling point: CH3CH2CH2OH CH3CH2CH3 CH3CH3 CH3CH2CH2Cl Rank from smallest to largest
A 0.50g sample of vegetable oil is placed in a caloriemeter. When the sample is burned 18.9kj are burned off. What is the caloric value in kcal/g of the oil? I am not sure how to set this problem up. Please help
What is the final pressure in the bottle for a monatomic gas, for which CV,m = 3/2R, and a diatomic gas, for which CV,m = 5/2R?
What mass of carbon dioxide (in kg) is produced upon the complete combustion of a typical tank of propane containi 18.9 L. The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are perfect.
A solution containing 80 g of KCl in 200 g of water at 50 0 C is cooled to 20 0C, a) How many grams of KCl remained in solution at 20 0C and b) How many grams of KCl crystallized out
the freezing point of the solution is lowered by 4.10 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this a) affect the separation between hexane and heptane?
Calculate the molarity of a solution of glycerol made by dissolving 67.000 mL glycerol at 15 C in enough water to make 320.00 mL of solution.
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