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The HCl molecule is quite well described by the morse potential with hcDe=5.33 ev. v=2989.7 and xv+52.05 . Assuming that the potential is unchanged on deuteration , predict the dissociation energy o
Estimate change in free energy for this reaction at each of the following temperatures and predict whether or not the reaction will be spontaneous
In the IUPAC naming system, all alkanes end in the suffix ane and begin with a prefix determined by the number of carbon atoms in the molecule
Determine the multiplicity W for placing the N particles in the M sites assuming that the particles are indistinguishable. Write an expression for entropy as a function of M and N based on the Boltzma
Given the heat of combustion for the following reactions, determine the enthalpy of formation for pentane, C5H12.
Determine the heat of combustion of ethyl alcohol (C_2 H_6 O). How much ethyl alcohol must be burned to generate enough heat to warm exactly one liter of water from 60 degrees faranheit to 180 degre
Derive an expression for the partition function for a molecule with two states separated by energy hν (i.e. ε1 = 0 and ε2 = hν). If we consider a canonical ensemble of N such m
If 2.5 mol of ethylene oxide are decomposed at 93 degrees C, what will be the final temperature of the products? The heat capacity of the products is 110.13 J/ molC.
When 100 mL each of 2.0 × 10-4 M Ca2+ and 2.0 × 10-2 M F- are mixed, what is the remaining Ca 2+ ion concentration and is precipitation complete. The solubility product constant of CaF 2
How many hours are required for 0.100 mol of electrons to flow through a circuit if the current is 1.00 A
calculate the absolute and relative error in terms of the concentration of Pb2+ when the electrodes are used to measure the lead-ion concentration in a solution containing 3.17X10-2 M Pb(NO3)2 and
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell- Pt(s)[H2(g, 1atm)][H+(aq, 1.0M)][A^3+(aq,?M)]Au(s)
The voltage across the leads of a glass pH-reference combination electrode immersed in a solution of pH 8.00 was 133 mV. Calculate the expected voltage if the pH of the solution is raised to 9.00
Write Lewis structures, including resonance structure and formal charges if necessary
What is the concentration of Cu^2+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.
For a silver-silver chloride electrode, the following potentials are observed- E° = 0.222 V E(saturated KCl) = 0.197 V Predict the value of E for a calomel electrode saturated with KCl, given that
When comparing solutions of equal concentration, what is the relationship between the PH of an acid solution and the acid Ka
A lactic acid/lactate ion buffer solution contains 0.29 M HC3H5O3- and 0.80 , respectively. The Ka value of lactic acid is 1.4x10^-4. Calculate the pH of the buffer.
A plumber's handbook states that you should not connect a copper pipe directly to a steel pipe because electrochemical reactions between the two metals will cause corrosion. What spontaneous redox r
If the synthesis of 1.0 mol of ATP requires a ?G of 37.7 kJ, how many moles of ATP are synthesized per mole of oxygen consumed
An ammonia/ammonium buffer solution contains 0.49 M NH3 and 0.62 M NH4+. The Kb value of ammonia is 1.8x10^5. Calculate the pH of this buffer.
what is the pH of 1.0 L of a buffer that is .11M HNO2 and .150M NaNO2. what is the pH of the buffer after adding 1.0 mL of 12M HCl. pH of original buffer
What is the energy implied by the mass defect? If this energy is carried away in a single photon, what is its wavelength? To what part of the electromagnetic spectrum does this correspond
Consider a collection of molecules where each molecule has two nondegenerate energy levels that are separated by 6000 cm-1. Measurement of the level populations demonstrates that there are 8 times m
What is the concentration of HNO3 if 9.20×10?2 mol are present in 825 mL of the solution