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Determine the energy of an electron excited from a hydrogen atom using Bohr's model. Determine the maximum wavelength of energy needed to observe a photoelectric effect for potassium.
If hydrogen atom is excited from an n = 1 state to an n = 3 state, how much energy does this correspond to? Is this absorption or an emission?
Uses of de-Broglie equation in electromagnetic spectra.
Removing an electron from solid potassium requires 222 kj/mol. Would you expect to observe a photoelectric effect for potassium using a photon of blue light (^=485nm)?
Write balanced chemical equation and evaluate the molecular weight of the reactants and Calculate the molecular weights of the reactant.
Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?
Estimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance.
Find the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide.
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
Calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for each.
To calculate the number of molecules of a gas using ideal gas law and Avogadro's number - How many ozone molecules are present in 1.0 L of air under these conditions?
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
Specific rotation of α and β -D-glucose - Determine the percentage of each anomer at equilibrium.
Sketch Flow diagram and explain the extraction process - What is the purpose of extracting the organic layer with water in the first extraction step?
Compare alkalide ion with the neutral alkali atom - For a given alkali metal, how does the ionic radius of the alkalide ion compare to that of the neutral alkali metal atom? Explain using physical arguments.
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