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Explain if the standard enthalpy of formation of ammonia vapor at 298K is -46.11kJ/mol. Determine its standard enthalpy of formation at 360K, specified that the molar heat capacities of the reactants as well as products are given by: Cpm = a + bT + c/T^2.
The decomposition of Phosphine, PH3(g), to P4 (g) and H2 is first order with rate constant of 1.1 min-1. How long will it take to decompose one fifth of the Phosphine
Describe the process of obrital hybridization as applied to carbon. You must include information on obritals used and produced
exhibits Kc = 0.0243 at 342 K. If the standard enthalpy change for this reaction is 10.0 kJ/mol, what is the value of Kc for the following reaction?
calculate the amount of heat required to completely sublime 20.0 g of solid dry ice rmco2 at its sublimation
Calculate the mass of aluminum deposited on the purified aluminum metal by the application of a current of 1.225 kiloamperes for 30 minutes from a very large quantity of a solution containing Al3+ ion in the Al2O3/Na3AlF6 molten state
A 3.50-g sample of magnesium hydroxide was treated with 50.0 mL of a 0.500 M aqueous sulfuric acid solution. Calculate the number of grams of magnesium hydroxide that remained undissolved.
What is the mechanism for the trans-esterification reaction of acetylsalicylic acid and methanol into methyl salicylate
A 12.0-g sample of ice at -19.0°C is mixed with 115.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Arrange the subsequent substances according to their expected lattice energies, listing them from highest lattice energy to the lowest- MgS, KI, GaN LiBr
The gas is heated to 520.0 K at a constant volume corresponding to the initial volume c) The gas undergoes a reversible isothermal expansion at 290.0 K until the pressure is half of its initial value
A sample of a gaseous compound of nitrogen and oxygen weighs 5.25 g and occupies a volume of 1.00 L at a pressure of 1.26 atm and temperature of -4.0 °C. Which of the following molecular formulas could be that of the compound
Determine the stopping potential as a function of wavelength at 433.9, 404.7, 365.0, 312.5, 253.5 nm.
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