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An equilibrium mixture contains N2O4 ( 0.28 atm ) and NO2 ( 1.1 atm ) at 350 K. The volume of the container is doubled at constant temperature. Calculate the equilibrium pressures of the two gases when the system reaches a new equilibrium.
When preparing the solutions for Part A, an aqueous solution of diamine and NaOH is made. Why isn't a solution of NaOH and diacid chloride in cyclohexane made
A 0.15 M solution of chloroacetic acid has a pH of 1.86 What is the value of Ka for this acid
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
What fraction of the total residues are branch points? B) How many reducing ends does this amylopectin have?
At 298K, 125 ml of 0.60 M potassium hydroxide KOH is added to 175 ml of 0.40 M hydrochloric acid HCl. What is the final pH
What is the pKa for the pyridium cation. Pyridine + H2O Pyridium cation + OH- Kb = 1.71 *10^-9 A. pKa for the pyridium cation = 3.9 B. pKa for the pyridium cation
NO (g) + O3 (g)-> NO2 (g) + O2 (g) For the reaction given, the frequency factor A is 8.7 x 1012 s-1 and the activation energy is 63 kJ/mol. What is the rate constant for the reaction at 75°C.
write the MO configuration of N2^+ and terms symbol for the ground state and excited states. show the photoelectron spectrum of N2. Assign short and long progression band.
Phosphorus pentachloride is used in the industrial preparation of organic phosphorus compounds. Equation 1 shows its preparation from PCl3 and Cl2. (1) PCl3(l) + Cl2(g) PCl5(s) Use equations 2 and 3 to calculate H°rxn of equation 1
which is known to change the activation energy of the process by 1.5 kJ. What will the rate of the reaction be with the catalyst when [A] = 0.0757 M at 315 K? Assume that the Arrhenius factor for this reaction has been determined to be 0.673 s-1.
Calculate the concentration of OH- in a solution that contains 3.9 x 10 to the -4 M H30+ at 25 degrees C. Identify the solution as acidic, basic, or neutral.
Calculate the pH of the following: (a) a solution made by combining 50.0mL of 0.15M acetic acid and 50.0 mL of 0.20M sodium acetate; (b) a solution made by combining 125 mL of 0.050M hydrofluoric acid with 50.0 mL of 0.10M sodium fluoride.
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