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Question- What would be the vapor pressure of water at 97 degrees C above a solution made by dissolving 68.86 of copper (II) nitrate, Cu(NO3)2, in 282.4 g of water? The vapor pressure of pure water at this temp is 682.1 mmHg. Assume complete dissociation of solute.
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If a 1.00 cm^3 solid cube of alumina ceramic initially at 300 C is placed in 50 ml of H2O initially at 25C in a closed, insulated container: (a) what will be the final temperature of the system when thermal equilibrium is attained.
Explain the difference between simple and fractional distillation. What are the differences in glassware used in simple vs. fractional distillation
What volume, in liters, of O2 at 35 degrees C and 1.19 atm can be produced the decomposition of 50.0 g of KNO3? 2KNO3(s)-->2KNO2(s)+O2(g).
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.
An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 7805 J. What is the specific heat of the gas
a 0.4268 gram sample of a a potassium hydroxide-lithium hydroxidemixture requires 30.88 ml of 0.3535 m hcl for its
Assuming the same calorimeter constant you determined (I got 217.8 J/degreesC) and assuiming NaOH is the limiting reagent, what is delta H(neutralization) in kJ/mol?
The concentration of commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9M in 100 grams of solution, there are 1.11 mol of HNO3. Calculate the volume of 100 g of solution
Using the following equation: 2AgNO3+MgBr2->2AgBr+Mg(NO3)2 calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
Explain why is longitudinal diffusion a more serious problem in gas chromatography than in liquid chromatography
Which one of the following substrates is found in both gluconeogenesis and the citric acid cycle? Answer A. isocitrate B. pyruvate C. phosphoenolpyruvate D. oxaloacetate
how do you calculate the effective temperature of jupiter if the sun is its only source of heat given that jupiter is 7.8*10^8 km from the sun and has an albedo of 0.73
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