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Phosphorus pentachloride gives an equilibrium mixture of PCl5, PCl3, and Cl2 when heated
PCl5(g) PCl3(g) + Cl2(g)
A 1.00 L vessel contains an unknown amount of PCl5 and 0.020 mol each of PCl3 and Cl2 at equilibrium at 250?C. How many moles of PCl5 are in the vessel if Kc for this reaction is 0.0415 at 250?C.
Determine the amount of heat given off when 1.26 x 104 g of NO2 are produced express your answer (in kJ)?
The difference between the energy of the products and the energy of the reactants D. Undefined because it depends on whether the reaction is endothermic or exothermic
Student B's results are 8.4 g/cm^3, 8.8 g/cm^3, 8.3 g/cm^3. Compare the two sets of results in terms of precision and accuracy.
consider the dissolution of an ionic compound such as potassiumfluoride in water.break the process into the following
derive an equation for the probability that a particle characterized by the quantum number n is in the first 40. 0 is
If 22.50mL of 0.100 M nitric acid is required to neutralize 25.0 mL of barium hydroxide solution, what is the molar concentration of the base. HNO3 (aq) + Ba(OH)2(aq) --->Ba(NO3)2 (aq) + H2O (l)
fructose c6h12o6 is a naturally occuring sugar found in honey and many fruit juices. its molar mass is 180.16 gmol. a
Calculate the total charge in coulombs supplied by the battery. How long in hours will it take to recharge the battery back to the original sulfuric acid concentration using a currtent of 22.4A
a 125 g metal block at a temperature of 93.2 degrees celsius was immersed in 100 g of water at 18.3 degrees celsius.
Calculate the concentration of the hidroxide ion in a solution where (H3O) is 0.32M. Asume the solution is at 25C and the Kw=1.0 x 10^-14.
What is the limiting reactant in this experiment. The density of methyl salicylate is 1.18g/mL at 20degree C
Draw a tetra-peptide that FPHD at pH 2.0. Clearly indicate with a circle what groups would be charged if the pH was changed to 12.0. Draw a box around the peptide bonds
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