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Titanium (f = 6.94 x 10^-19 J) and silicon (f = 7.77 x 10^-19 J) surfaces are iradiated with UV radiation with a wavelength of 207nm.
Explain the wavelength of the electrons emitted by the titanium surface?
the mass spectrum of an organic compoundc40h82 contains m andm1 peaks. if we assume the intensity ofm peak 100 what
what would be two examples of reductive alkylation of N-methylbenzylamine and formaldehyde
What would be the ppm conc'n of 4.76 µg of NaCl in 350 ml of solution. What would be the ppm conc'n of sodium in the foregoing question.
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
Why would a mixture of salts be more difficult to identify than a single salt? For example, copper sulfate, barium nitrate and nickel bromide versus only nickel bromide.
A patient recieves all her nutrition from fluid given through the vena cava. every 12 hours, 750mL of a solution that is 4%(m/v) amino acids (protein) and 25% (m/v) glucose (carbohydrate) is given along with 500 mL of a 10%t (m/v) lipid (fat)
The value of the equilibrium constant for this reaction is 2.2 at 700 celsius. What will be the concentrations of all gases at equilibrium, when 2.00 mol of CO and 2. mol of H20 are mixed in a 2 liter reactor and heated to 700.
The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 78.0 m/s, what is its corresponding wavelength?
a 345 ml container holds nh3 at a pressure of 745 torr and a temperature of 45 degrees celsius. what is the molar
A KNO3 solution containing 45 g KNO3 per 100 g of water is cooled from 40 degrees C to 0 degrees C. What happens during cooling
What is the pH halfway to the equivalence point for the titration of 0.20 M CH3NH2 with 0.20 M HCl? (Kb of CH3NH2 = 4.4 x 10-4)
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
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