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Determine the activation energy for this reaction when heated to a high temperature, cyclo-propane is converted to propane; the rate constants for this reaction are 1.10 x 10-4 s-1 at 470o
Discuss what volume will 5.4 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 128°C and 9.4 atm?
Calculate the enthalpy of vaporization. For water, at its boiling point, the entropy of vaporization is118 J/(K mol). Assume a pressure of 1 atm.
A 0.4512g of the primary standard Na2CO3 needed 36.44mL of HCl solution to reach the endpoint in the reaction. How can obtain the molarity of HCl?
Identify the expected change in temperature for 3.5 g of NH4NO3dissolved in the 75.0 mL of H2O. Assume that the calorimeter absorbs no heat, ie: C cal=0
Analyze the average kinetic and potential energies,(Ekinetic) and (Epotential), for the ground state (n=0) of the harmonic oscillator by carrying out the appropriate integrations.
Determine the average vibrational amplitude of the quantum harmonic oscillator about its equilibrium value, (x), for the ground state (n=0) and first two excited states (n=1 and n=2). Determine the
Determine the average of the square of the vibrational amplitude of the quantum harmonic oscillator about its equilibrium value (x2), for the ground state (n=0) and the first 2excited states (n=1 and
What was the original concentration (molarity) of the NaOH soluation? This new solution is then titrated with 10.02 mL of standardized KOH which has a molarity of 0.09883 M until the equivalence poi
If the zero point energy were converted to translational energy, calculate what would be the speed of the masses?
Calculate the pH value of this solution when a solution of benzoic acid is titrated with NaOH until the solution is 0.45M in benzoic acid and 0.55M in sodium benzoate.
The tablet was dissolved in, and reacted with, an excess amount of HCL (125.00ml of 0.101 M HCl). A Tums tablet weighed 1.319g. The excess un-reacted HCL was titrated with the NaOH: 17.85 ml of 0.10
Cyclohexane with a 3-carbon chain attached (there is a Br attached to the C that is attached to the cyclohexane molecule)
Determine the average rate constant, k. be sure to give the correct units. Determine the tail rate of the reaction when [A]=0.0500M and [B]=0.175M
Determine the average rate of the reaction M/s over the entire time interval.Determine the value of the rate constant, K?Determine the half -life in seconds for the reaction.
2NOCL (g) ↔ 2NO(g) + Cl2(g) at the 308 K is 1.6 x 10 -5 at this temperature, does the reaction favor products or reactions?Determine Kp for this reaction at this temperature.
Determine the fractional speciation of H2PO3- in a phosphoric acid solution brought to pH 7.70 by addition of NaOH. Does anyone have a crib sheet that translates the 7th edition?
Determine the pH of a solution prepared by the addition of 0.1 ml of 0.5M NaOH to 50.0ml of "pure" water. Calculate the percent yield if 86 mol of MnO2 and 4.82 kg of HCl react and produce 1.098kg
Determine the mass of 0.100M HCl solution neutralizable and compare it to 44times the mass of the Rolaids tablet (the mass implied by "neutralizes 47 times its own weight in excess stomach acid").
The solubility of AgCl in the water is 1.91x10-4 M at 100°C and 3.97x10-6 M at 0°C. Estimate Ksp for AgCl at each temperature, determine ΔH°,ΔS°, and ΔG° at the
Explain what would be the pH of a solution prepared by combining the equal quantities of Na2HPO4 and NaH2PO4? Explain with an equation.
When the penta peptide below is heated first with2,4-dinitrofluorobenzene (and base) and then subjected to acidic hydrolysis which amino acid will bear the dinitrophenyl group? Leu Val Gly Phe Ile
At 39 degrees C the solid iodine has a vapor pressure of 1.0 mm HG. Determine the numbers of moles of Iodine will sublime into a 500 ml flask at this temperature?
Which of the following does not involve the interaction of molecules with the electromagnetic energy? determine the nature of the conjugated pi electron.
The following questions pertain to the charting of NMR spectra. MATCH a term to each description below. Place the letter of the term in the blank to the left of the description.