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what is the wavelength ,in nanometers, of light with an energy content of 1979Kj/mol? In what portion of the electromagnetic spectrum i this light?
What volume (L) of 0.250M HNO3 is required to neuralize a solution prepared by dissolving 17.5g NaOH in 350mL of water?
A solution of hexane and heptane at 30 degrees C with hexane mole fraction 0.305 has a vapor pressure of 95.0 torr and a vapor-phase hexane mole fraction of 0.55. Find the vapor pressures of pure hexane and heptane at 30 degrees C. State any appro..
Predict the order of elution for the silica gel adsorption TLC separation of the mixture containing benzyl alcohol, benzaldehyde, and benzoic acid using methylene chloride solvent. Explain
Calculate the equilibrium constant for the reaction that occurs when nitric acid is added to the buffer HA
What is the final temperature (in oC) of a 41.6 g sample of iron (specific heat = 0.444 J/(g K)) which evolves (-12.18) J of heat when it cools from 91.4oC
If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room?
Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees Celsius to form exclusively isopropyl alcohol and 1-iodobutane.
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point, and the solution turns deep pink.
When potassium carbonate is added to the remaining solution, a precipitate occurs. Which ions were present in the original solution? Write net ionic equations for the formation of each of the precipitates observed.
If 12.5 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 28°C and 753 mm Hg?
A compound has the empirical formula CH2O. When 0.0866 g is dissolved in 1.000 g of ether, the solution's boiling point is 36.5°C. Determine the molecular formula of this substance.
What is the basis for distillation techniques used to separate two or more components and If so, this would give me the four apparatus requested.
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