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For silver metal, the velocity of electrons emitted utilizing 200 nm photons is 7.42 x 105 m s-1. Compute the work function of silver in eV.
What is the solubility of Ca(OH)2 in 0.0500 M NaOH assuming both Ideal and Real behavior
Hydrocyanic acid HCN is a weak acid Ka value is 4.0 x 10-10 what is the [H-1] in 0.10M solution of HCN
calculate the molality of each of the following solutions.a 15.9 g of sucrose c12h22o11 in 690. g of waterb 7.38 moles
the system is not at equilibrium and will shift to the right to achieve an equilibrium state. not at equilibrium and will shift to the left to achieve an equilibrium state. at equilibrium. not at equilibrium and will remain in an unequilibrated sta..
"Soft" ionization techniques can introduce multiple charges onto a molecule to produce multiply-charged species. Show a possible spectrum for an 1800 Da peptide protonated by chemical ionizatoin with up to 4 charges. Be sure to label the axes and ..
sample of h2o with a mass of 46.0 grams has a temperature of -58.0 c. how many joules of energy are necessary to heat
how many joules of heat are produced for each electron? c. If the circuit operates for thirty mins, how many mles of electrons will have flowed through the resistor?
Since the sample is an unknown solid, I will have to make a solution without knowing exactly what to mix. In your expertise, how much of the solid do you expect to dissolve in what volume of water and what is your reasons for choosing these amount..
A healthy stream has an oxygen concentration of 0.00850 g/L. Assuming no biological process affects this concentration, what must be the pressure of oxygen
An Element consists of 1.40% of an isotope with mass 203.973 amu, 24.10% of an isotope with 205.9745 amu, 22.10% of an isotope with mass 206.9766 amu. Calculate the average atmoic mass and identify element.
Define the wavelength and amplitude of a wave. How are these related to the energy of the wave
What is the difference between a certain number and an uncertain number in a measurement. which certain and uncertain numbers count as the significant figures of a measurement
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