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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)?
Find the rate of the reaction - What is the rate of the reaction?
If a sample of sodium is dropped into a container of water the reaction is:
Write balanced chemical equation and evaluate the molecular weight of the reactants and Calculate the molecular weights of the reactant.
Explain the steriochemisty of gyceraldehyde and glycerol, give reasons for absence of anomeric forms in sucrose
Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].
What will be the resultant pressure when the stopcock is opened?
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
Estimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance.
To determine the volume of a gas using ideal gas law and evaluate the number of moles of a gas using ideal gas law.
Find the amount of known substance present in the mixture and determine the mass of calcium carbonate present in original mixture.
Find out the exact significant figures for each of the values - Indicate the number of significant figures
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