Explain removing the valence electron from potassium
Which is more difficult: removing the valence electron from Potassium or removing the valence electron from sodium after the latter has been excited to the 4s level? Why?
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What is the wavelength (in nm) of radiation that has an energy content of 1.81X10^3 kJ/mol? In which region of the elctromagnetic spectrum is this radiation found?
A Companys revenue function is 43.30X, and its budgeted cost function is 24.80X + 91000. where X is the unit sales. if the companywants to earn 56000 after taxes, and the tax rate is 40%, how many units must it sell?
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If barium needs a minimum frequency of 6.07x10^14 s-1 to eject electrons, calculate the kinetic energy of the electron emitted when barium is illuminated with a wavelength of 385 nm.
Write a balanced net ionic equation for the reaction that takes place during titration.
Use the law of constant composition to complete the following table summarizing the amounts of iron and chlorine produced upon the decomposition of the sample of iron(III) chloride.
What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 *10^6 m^3 of air having an SO2 concentration of 1.5*10^-9 M ? Assume that the reaction leading to removal of the sulfur dioxide is:
You take a 15.00 mL aliquot of a 0.175 M acetic acid solution and a 30.00 mL aliquot of a 0.145 M sodium acetate solution and dilute to 100.00 mL. What is the pH of the resulting buffer?
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