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Elements of symmetry
A .400 M formic acid (HCOOH) solution freezes at -0.756 degrees C. Compute the Ka of the acid at that temperature. Presume that molarity is equal to molality. Do calculations to three significant figures and roud off to two for Ka.)
using p-aminobenzoic acid give equations showing how procaine and procaine monohydrochloride could be prepared. which
Compute the boiling point of this solution if Kf and Kb for H 2 O are given as 1.86°C/m and 0.512 °C/m , respectively.
Calculate the molarity of a solution made by dissolving 0.850 grams of Na2SO4 in enough water to form exactly 930 mL of solution.
When gasoline burns, it reacts with oxygen in the air and forms hot gases consisting of carbon dioxide and water vapor. How does the potential energy of the gasoline and oxygen compare with the potential energy of the carbon dioxide and water vapo..
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
You want to prepare a solution that is 0.200m in Na2CO3. How many grams of the salt must you add to 125g of water? What is the mole fraction of Na2CO3 in the resulting solution?
A flexible container at an initial volume of 6.13 L contains 8.51 mol of gas. More gas is then added to the container until it reaches a final volume of 18.5 L. Assuming the pressure and temperature of the gas remain constant, calculate the number..
Calculate the change in internal energy of the gas in each case of these processes.
How much volume (in cm^3) is gained by a person who gains 11.5 lbs of pure fat?Part 2) Rolls of aluminum foil are 300mm wide and 0.016mm thick. What maximum length of aluminum foil can be made from 1.10kg of aluminum?( d(aluminum)=2.70 g/cm^3).
Compute the equilibrium constant, Keq, for the reaction of equimolar amounts of acetophenone, C6H5COCH3, and hydroxide ion to generate the enolate ion.
Problem- Naproxen is a commercially important anti-inflammatory agent. A solution of 1.138g of naproxen in 25.00 g of benzene has an osmotic pressure of 4.00 atm at 20oC. The solution volume is 29.75mL. Calculate the molar mass of naproxen, assumi..
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