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Calculate the work (in kJ) when 2.60 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
oxygen are required to react with 5.62 mol nitrogen to produce dinitrogen trioxide?
Consider the gas-phase reaction A + 2B 2C + D. Starting with 1.0 mole of A and 1.0 mole of B in 2.0 liter container, the reaction proceeds to equilibrium at T = 103C with 8.6 × 10-2 moles of C now present.
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq)
how many radial nodes are present in the radial eigenfunction associated with the 3p atomic orbital associated with the 3p atomic orbital for hydrogen like atom?
The wind speed is 4.8 m/s on a slightly sunny morning and plume rise is 20 m. (a) Calculate the ground-level centerline concentration 2.0 km downwind from the stack. (b) Calculate the concentration at 100 m off the centerline at the same x distanc..
Find the weight percent copper in the salt. Would you help me to sort out this question? A 3.026 gram portion of Cu(II) salt was dissolved in a 250 ml volumetric flask. A 25.0mL
Consider the titration of 30.0 ml of 0.048 M NH3 with 0.025M HCl. Calculate the pH after the following volumes of titrant have been added.
100 mol/h of n-octane is burned in 80.0% excess air to 95.0% conversion. What is the molar flow rate of N2 in the stack gas if The n-octane is converted to a mixture carbon monoxide, carbon dioxide, and water, where the ratio of CO2 to CO is 4:1?
At what pressure does the mean free path of argon at 25C become comparable to the size of 1dm^3 vessel that contains it? take ?=.36nm^2
Calculate the osmotic pressure generated when 14.6 grams of estrogen are dissolved in 275 ml of a benzene solution at 298 K. What is the molarity and osmotic pressure
A reaction has a rate constant of 1.27×10?4 /s at 28 degrees C and 0.226 /s at 78 degrees C. Determine Activation Barrier. What is the value of the rate constant at 16 degrees C?
The enthalpy of combustion of benzoic acid (C6H5COOH) is commonly used as the standard for calibrating constant-volume bomb calorimeters; its value has been accurately determined to be 3226.7 kj?mol.
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