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For Na+ and Mg+ ions, compare the ratios of the number of ions in the 3p excited state to the number in the ground state in
(a) a natural gas-air flame (1800 K).
(b) a hydrogen-oxygen flame (2950 K).
(c) an inductively coupled plasma source (7250 K).
Phenol (C6H5OH, also called carbolic acid) has a pKa of 9.89. It is used to preserve body tissues and is quite toxic. Calculate the percent ionized in 0.0399 M phenol--a dilute solution.
two kinds of carbonyl acceptor structures in addition to benzoate esters can be used in reaction with phenylmagnesium
An aqueous solution of KNO3 has a molal concentration of 1.099 mol kg-1. Its density is 1.0630 g mL-1. Calculate the molar concentration of KNO3.
Calculate the number of moles and the number of grams of the indicated solutes present in each of the following solution samples.
For the isoelectronic series[V(CO)6]-, Cr(CO)6, and [Mn(Co)6]+, does the energy of the metal to ligand charge-transfer bands increase or decrease with increasing charge on the complex? Why?
a sample of 100.0 mlnbsp of 0.10 m ammonia nh3 is titrated with hno3 of 0.10 m. find out the ph of the solution after
A very long insulating cylindrical shell of radius 6.70cm carries charge of linear density 8.60Nc spread uniformly over its outer surface.
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
If 358 mL of H2SO4 is neutralized with 60.0 mL of 1.50 M NaOH, what is the initial concentration of the acid?
The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.24 M sodium sulfate, Na2SO4
Calculate the molecular mass of the nonionic solutes: 8.02 g of solute in 861 g of water lower the freezing point to -0.430 degrees C.
If a system consists of two subsystems, one with 5 microstates and one with 10 microstates, how many microstates are in the whole system?
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