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Compute the wavelength corresponding to a transition of electrons from the n = 6 energy level to the n = 3 level in a B4+ ion.
a compound containing nitrogen and oxygen is decomposed in the laboratory and produces 1.78 of nitrogen and 4.05 of
The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
Borazine has the formula (BHNH)3. The combination of a boron atom and a nitrogen atom is isoelectronic with two carbon atoms. How would you draw the stucture of borazine?
calculate the change in enthalpy when 52.0 g of solid chromium at 25 degrees celcius and 1 atm pressure is oxidized.
what is the steric number of nitrogen trifluoride, carbon tetrabromide, phosphorus pentiodide, sulfur hexachloride, and bromine trifluoride.
What are the possibilities of the experimental error. Why is the zero order correlation coefficient better than first order
In the Balmer-Rydberg equation, what value of is used to determine the wavelengths of the Balmer series?
What mass of sodium phosphate would have to be added to 2.0 of this solution to completely eliminate the hard water ions
Which of the following molecules have the same geometries. A) SF4 and CH4 B) CO2 and H2O C) CO2 and BeH2 D) N2O and NO2
a phosphorous acid buffer needs to be prepared to a ph of 5.92 given a 120ml solution of 25mm phosphorous acid how many
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L.
A container holds 355mL of a mixture of nitrogen and carbon dioxide gases. Compute the partial pressures of each gas if the container is at 27.3 degrees C.
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