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What is the equilibrium constant, K, value (ignore units) at 441.3 K for the following reaction ? N2(g) + 3 H2(g) ? 2 NH3(g) [Note (all at 25oC): (1) Standard enthalpies of formation for N2, H2, and NH3, are, respectively, 0, 0, and -46.10 kJ/mol. (2) Standard free energies of formation for N2, H2, and NH3, are, respectively, 0, 0, and -16.50 kJ/mol. (3) Standard entropies for N2, H2, and NH3, are, respectively, 191.5, 130.6, and 192.3 J/(mol·K).]
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
Rank them in order of size from largest to smallest. In this diagram, A and B are different palindrome sequences on a DNA strand. Only the restriction enzyme that recognizes site B is present. Explain why only two fragments would be produced. How ..
How would the results differ if you added sodium p-toluate instead of p-toluic acid to the two-layer mixture of tert-butyl methyl ether and water
The first-order rate constant for the decomposition of a certain hormone in water at 25 degrees C is 3.42*10^-4 day^-1. If a 0.0200 M solution of the hormone is stored at 25 degrees C for 10 months
If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask.
What mass of rm KCl is needed to precipitate the silver ions from 15.0 mL of 0.190 M rm AgNO_3 solution?
When the flask is allowed to cool the vapor condenses and aire again refulls the flask. Re weighing the flask and figure out the the wight of the unknown vapor which filled the flask during the boiling. Explain why it is not necessary to know the w..
What is the mass percent of copper sulfate CuSo4 in a sample of cooper sulfate pentahydrate CuSO4*5H2O
A compound contain 60.87% carbon, 4.38% hydrogen, and 34.75% oxygen then determine its empirical formula?
At high temperature, ammonia reduces copper(II) oxide to the free metal: 2NH3(g) + 6CuO(s) => N2(g) + 3Cu2O(s) + 3H2O(g) Step 2: 2NH3(g) + 3Cu2O(s) => N2(g) + 6Cu(s) + 3H2O(g)
how many grams of carbon dioxide are produced when 23.5 g of propanal react with excess oxygen in a combustion reaction
propane, C3H8, is common fuel used for cooking and home heating. What mass of O2 is consumed in the combustion of 1.00g of propane. I am having a hard time getting the balanced equation for this to solve the rest
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