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For 1 mol of an ideal gas, pext = p = 101 kPa (pressure remains constant). The temperature is changed from 100 degrees C to 25.0 degrees C. Calculate q, w, ΔU and ΔH. Assume CV,m = 3/2 R.
the rate of the constants for the above gas pharse reaction is 1.438M^-2 s^-1 at exactly 642.5 Kelvin and 21.64 M^-1 s^-1 at exactly 838.1 Kelvin. What is the value of the activation energy of the reaction in KJ/mole?
What is the metal ion in a metal nitrate solution M(NO3)3(aq) if 90.52g of metal was recovered from a 4.00 hr electrolysis at a constant current of 35.0A
Determine the expression for the rate of reaction with respect to each of the reactants and products.
Hydrogen peroxide (H2O2) decomposes according to the equation H2O2(l) ? H2O(l) + (1/2)O2(g). Calculate Kp for this reaction at 25oC. (Ho = -98.2 kJ/mol, So = 70.1 J/K•mol)
The copper(I) ion forms a chloride salt that has Ksp = 1.2 10-6. Copper(I) also forms a complex ion with Cl
what is the ph of a buffer if this buffer solution contains 0.12 mol of ch3ch2cooh and 0.10 mol of c3h5nao2 in 1.50
A 50.0ml canister of Freon-12 (CF2Cl2) was heated in boiling water (100.0ºC) until the canister burst. If the canister was not defective, and had a burst rating of 1500psi, what minimum amount of Freon-12 was in the canister, assuming no volume ch..
what is vapor pressure in mmhg of a solution prepared by dissolving 5.00 g of benzoic acid in 100g of ethyl alcohol at 35 degrees celcius? the vapor pressure of pure ethyl alcohol at 35 degrees if 100.5 mmHg
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV
Write a balance equations for both half-reactions for the redox. combine them to determine the overall balanced
For the following electrochemical cell Cu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 1.50 M)|Ag(s) write the net cell equation. phases are optional. do not include the concentrations. Calculate the following values using standard potentials as needed.
How many grams (g) of calcium phosphide should be dissolved in 501.5 g water to produce a solution that freezes at -1.894 ºC? Kf = 1.86 ºC/molal. Use the ideal van't Hoff factor.
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