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Account for the fact that LiF as well as CsI have low solubility in water whereas LiI and CsF are very soluble. Define in terms of lattice energy and hydration energy
The pH at one-half of the equivalence point in a weak acid-strong base titration
Compare lattice energies of LiI and PbI2 and calculate the formation enthalpy in each case by constructing a Born-Haber cycle. Which one is more ionic? Comment.
The melting temperature of substance X is 42 ?C at 1 atm pressure. What is the standard entropy change of fusion, S fusion (Assume that H fusion and S fusion don't change with temperature.)
Calculate the frequency of the light emitted by hydrogen atom during transition of its electron from n=6 to the n=3 principal energy level.
the absorptivity often used in rapid determinations of protein concentration is the e1 based on aromatic amino acid
Equilibrium between the composition of Hydrogen sulphide in the gaseous and liquid phases can be represented as Yn=48.3Xn.
When 23.2 mL of 0.11 M HCl are added to 50.0 mL of a 0.17 M solution of a weak monoprotic base, the pH of the solution is 9.70. What is the Kb of the weak base
H2S and H2O have similar structures and thier central atoms belong to the same group. Yet H2S is a gas at room temperature and H2O is a liquid. Use bonding principles to explai why this is. What is the difference between H2O and H2S
Limonene (mw 136) is a pleasant smelling liquid found in lemon and orange peels. the bp of limonene is 175, but it co-distills with water at 97.5. if the vapor pressure of water at 97.5 is 690 mm hg, what percentage of the steam-distillate is limo..
Explain why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide
the ionization of water must be considered in order to calculate the pH of this acidic solution.)
The first ionization energy of a boron atom is 1.33 aJ. What is the frequency and wavelength, in nanometers, of photons capable of just ionizing boron atoms?
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