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For the subsequent processes, compute the indicated quantities for a system consisting of 1mol of N2 gas presume ideal gas behaviora) The gas initially at 10atm pressure is expanded tenfold in volume against a constant external pressure of 1atm, all at 298 K. compute q, w, delta E, delta H for the gas
The water bath conatins 2.90 kg of water at 27.6 degrees celcuis. During the reaction 110 kj of heat flows out of the flask into the bath. Calculate the new temperature of the water bath
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
How many grams of potassium fluoride (KF) can be produced from the reaction of 92.3 g of potassium with 55.5 g of fluorine gas. The balanced equation of the reaction is: 2 K(s) + F2(g) 2 KF(s)
A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M. Determine the [IO3^-] and the Ksp of the substance.
how do the tests on known solutions containing cations and anions make it possible for you to identify the cation or anions
solid silver nitrate is added to a solution that is 0.0010 m each in nacl nabr and nai. for agi ksp 1.5x10-16 for agbr
(i) Arrange the following compounds in the order of increasing melting points: (a) He, (b) NH3, (c) LiBr, (d) Ar, (e) CsBr, (f) PH3, (g) CsI, and (h) RbBr.
the fuel has an average formula of 15 of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings); the density of the fuel is 0.78 the initial temperature of the water is 25.0 and the standard enthalpy of fo..
A refrigeration tank holding 5.00 L of Freon gas (C2Cl2F4) at 25°C and 3.00 atm pressure developed a leak. When the leak was discovered and repaired, the tank had lost 76.0 g of the gas.
You work for a local chemical company. In your capacity as a chemist at this company, you developed a novel catalyst for the reaction with delta G = -10.5 kJ/mol at 50 degrees celcius For the uncatalyzed reaction at 50°C, the kf (the forward rate ..
When a nitrite containing sample with a mass of 3.000 g was analyzed, 16.65 mL of 0.1500 M Na2S2O3 solution was required to completely titrate the sample. What is the mass percent of NO2- ion in the sample
What is the molal concentration of glucose in this solution. Assume that the freezing point of pure water is 0.00 ^\circ \rm C.
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