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Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide as well as chlorine at elevated temperatures: CO (g)+ Cl2 (g) COCl2 (g). If 0.430 mol of each reactant is placed in a 0.500 L flask at 600 K, explain what are the concentrations of all three substances at equilibrium Kc = 4.95 at this temperature?
20ml of 0.15M H3PO4 is required to neutralize 40ml of a KOH solution. The molarity of the KOH solution is?
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 39°C
Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops
Calculate the number of moles containing each of the following. Express your answer to three significant figures and include the appropriate units. A.) 1.42×1022 atoms of sodium
A gas mixture composed of helium and argon has a density of 0.719g/l at a 743mmHg and 298k . What is composition of mixture by volume?
a 0.1967 g sample of pure ascorbic acid is weighed out and dissolved in 50 ml of distilled water in an erlenmeyer
What would the change in temperature be in each change if 1 mole of an ideal gas is subjected to numerous changes in state, C= 12.47 J/Kmol.?
2 mL of 1,2-dichlorobenzene was added to a 250 mL volumetric flask, then it was diluted to 250 mL with benzene. A capacitance cell was submerged into this solution, then the cell was attached to a frequency counter. The frequency response was meas..
Paracetamol is similar to asprin in that p-aminophenol is reacted with acetic anhydride and yet the amino group is acylated and not the hydroxy group. Why
Bombardment of nitrogen-14 with an alpha particle produces a proton and what other radioactive isotope
The ionization energy of vanadium from the ground state is 650.2 kJ/mol. Assume that the transition in (3) is from the ground state to an excited state. If that is the case, calculate the ionization energy from the excited state.
What is the purpose of grinding the magnesium before introducing it into the reaction flask?
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