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What volume of water should be added to 600 mL of ethanol in order to have a solution that boils at 95 degrees Celsius? (For ethanol, Tb=78.4 degrees Celsius, Kb=1.22 degrees Celsius and d= 0.789 g/ml. For water d= 1.00 g/m.
What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms
The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.24 M sodium sulfate, Na2SO4
Ethanol fills a cylindrical glass tube 15.0inches long. We find that the mass of ethanol needed to fill the tube is 9.4g. Calculate the internal pipe diameter in inches. (The density of ethanol is 0.789 g / ml)
if a power plant burning 10000 metric tons of coal per day with 6 excess air emits stack gas containing 222 ppm by
this solution was added 1.960 grams of KI and 50.00 mL of a 0.00923 M KIO3 solution. The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
In the purification process, the organic layer is washed sequentially with 2 M NaOH, water, and saturated aqueous sodium chloride. What is the purpose of each of these washes and why is cold 2 M NaOH recommended
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy relased by the formation of water from H2 and O2 into eletrical energy
The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually t-butanol absorbs water on exposure to the air. If the freezing point of a 9.2-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sam..
the triangleG and triangleG0! both refer to the free energy change in the steady state reaction. steady state means that the concentrations of substrates and products are fixed or constant. all of the following statements about triangleG and trian..
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. The piston is pushed down with a steady force measured to be 11 N.
15mL of radiator liquid (water + ethylene glycol) from a car has a mass of 15.69g. Is the the density of ethylene glycol greater or less than that of water
Consider the titration of 30.0 ml of 0.025 M NH3 with 0.020 M HCl. Calculate the pH after the following volumes of titrant have been added.
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