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In a photoelectric effect experiment where the purpose is to investigate the relationship of the kinetic energy of the emitted electrons to the brightness intensity, rate of energy flow per unit area and to the color wavelength or frequency of the incident light, utilize a mercury light to find the Vo for Green, Yellow, Blue, Violet & ultraviolet.
While obtaining the Vmax(Vo) for Yellow & Green we utilize a yellow and Green filter.
Define why did not use a blue filter on the blue band measurement of Vo?
What wavelength, of light would be necessary to ionize an electron at the n = 3 state in a He+ cation
Based on the source of phosphorous (which cannot be changed) the surface concentration is 400 P atoms per 10 million Si atoms. Estimate the temperature you should dope at (C) if you must have a concentration of 100 P atoms per 10 million Si atoms ..
a sample of gas with an initial volume of 33.0 l at a pressure of 765 mmhg and a temperature of 325 k is compressed to
Calculate kp and kc for the dissociation.
Based on the data gathered in the Rutherford's scattering experiments, the concept of atomic structure was modified. Which of the following aspects of the structure of the atom were validated by these experiments
Using the table of reductions values explain why silver ion is the reactant and why silver metal is a sacrificial anode that protects mercury from oxidizing into mercury(I) or mercury(II) ion.
If 28 mL of a .537 M NaOH solution is needed to neturalize 20 mL of a carbonic acid (H2CO3) solution, what is the molarity of the carbonic acid? (Write a balanced chemical reaction first.)
If your chemistry book weighs 2 kgs, and you needed to lift the book from the floor to a shelf 150 cm high, calculate the energy in J required to lift the book from the floor to the shelf 100 times.
What is the conjuate base of HPO4^2- C. Which acid has the weaker conjugate base. D. which acid has the stronger conjuate base. E. which acid produces more ions
a 1.00 g sample of stream water was found to contain 5.010-6 g lead. calculate the concentration of lead in the stream
which portion of the titration curve are you in to reach pH = 7? Show your calculations to prove that dilution of 10,000 gal aniline requires 0.58 gal of this acid.
A weak acid HX has Ka = 1.00×10-6. What would be the pH of a 0.10 M solution of HX in water?
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