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Problem- A 0.130-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium? Assume the formation constant* of Ni(NH3)62 is 5.5 x 10^8.
State your answer by means of three significant figures.
In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching fequency, we would not have expected to observe the late stretching mode in the infrared spectum. Why?
suppose a cup of coffee at the campus coffee shop is 1.50 and a cup of hot tea is 1.25 and a students beverage budget
Problem- The hydrogen in interstellar space near a star is largely ionized by the high-energy photons from the star. Such regions are called "H II regions." Calculate the longest wavelength of light that is able to ionize a ground state hydrogen a..
Its volume in the liquid state is 1.00 cm3 and its volume in the vapour state is 1671 cm3. Find the work done by expansion due to evaporation and the change of internal energy of the system.
The final temperature is 27.06 C. Presume that the volumes are additive, the specific heat of the solution is 4.184 J/g. C and that the density of the solution is 1 g/mL. Compute the enthalpy change, ΔH, in KJ for the reaction.
At 1000 K the equilibrium constant for the reaction Br2 (g) === 2 Br (g) is 2.8 x 104 (pressure is in atmospheres). What does G for the reaction. Assume that the bond energy of Br2 does not change between 298 K and 1000 K and calculate S for the r..
How many absorptions would you expect to observe in the 13C NMR spectra of cyclohexanone
compressed gas cylinder contains 1.00 x 103 g of argon gas. the pressure inside the cylinder is 2050 psi at a
What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol
Depict a molecular energy level diagram for the water molecule, and fill in the electrons and is the multiplicity of water a single t
the Na formed during the breakdown of NaN3 reacts with Fe2O3. How many grams of Fe2O3 are needed to react with 35.3 g Na?
Molecules can be as small as a few atoms or as large as thousands of atoms. In 1962, Max F. Perutz and John C. Kendrew were awarded the Nobel Prize for their discovery of the structure of hemoglobin
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