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what is the value of Kc for the following reaction at equilibrium: N2(g) + 3H2(g)<>2NH3(g) if [NH3]=2.2 M, [N2]=.44 M, and [H2]=.40 M
Calculate the concentration of Cu2+ ion in this standard solution if the stock solution was 0.0200 M Cu2+.
The half-life of tritium (31H) is 12.3 years. If 47.0 mg of tritium is released from a nuclear power plant during the course of a mishap, what mass of the nuclide will remain after 24.6 years?What mass of the nuclide will remain after 98.4 years?
Do a calculation to check the claim that to fully neutralize 17,000 tons of CaCO3 would require enough 0.0005 M H2SO4 to fill 8 millions swimming pools.
A particle rotates on the surface of a sphere. The angular momentum of the particle can be considered as a vector starting at the center of the sphere and pointing outward.
Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0L and which contains O2 gas at a pressure of 16,500kPa at 23°C.
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
Determine the vapor pressure of a solution prepared by dissolving 250 g of Ethanol in 375 g of water?
Which of the following is not true regarding social development?
Calculate delta S at the indicated temperature for a reaction having each of the following changes in enthalpy.
What observed rotation is expected when a 1.50 M solution of (R)-2-butanol is mixed with an equal volume of a 0.750 M solution of racemic 2-butanol
0,245g of the carbonate was found to exactly neutralise 23,6cm3 of HCl with a concentration of 0,150 mol/dm3.
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