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Question- A photoelectron produced by ionization in a photoelectron spectrometer is ejected with a velocity of 861 km s-1. Calculate the de Broglie wavelength (in Ã) of the electron.
Inscribe your solution in appropriate format as well as provide references
The addition of barium nitrate solution, followed by dilute hydrochloric acid, to a solution of sodium dichromate.
a 0.21 m3 drum contains 100 l of a mixture of several degreasing solvents in water. the concentration of
Describe the effect on pH (increase, decrease, or no change) that results from each of the following additions: (a) potassium acetate to an acetic acid solution,
Enter the compound formula, including state, of the missing substance ( Y ) in the balanced equation below. Do not give the coefficient. Polyatomic ions only need parentheses when there is more than one of the given ion in the molecular formula.
which of the water samples that you tested had the highest calcium concentration? does this correlate with the total dissolved solids results you obtained
Ethyl p-aminobenzoate was produced by the H2SO4 acid-catalyzed, reversible reaction of paminobenzoic acid and ethyl alcohol, as depicted below. Briefly explain why one reactant (the one that's cheaper and more easily separated during work-up) was ..
calculate the molality m of a 7.25 kg sample of a solution of the solute ethanol dissolved in the solvent water if the
While solid Zn metal is put into an aqueous solution of NiSO4, solid Ni metal and a solution of ZnSO4 result. State the net ionic equation for the reaction.
Predict the order for increasing binding energies of the C(1s) electron for the following compounds giving your reasoning.
If 50.00mL of 1.00 M HC2H3O2 Ka= 1.8x 10-5 is titrated with 1.00M NaOH. Explain what is the pH of the solution after the subsequent volumes of NaOH have been added
Substances A2, B2, and C2 can act as oxidizing agents. Solution A2 is green, B2 is yellow, and C2 is red. In the reactions in which they participated they are reduced to A-, B-, and C- ion, all of which are colorless
How does an increase in the pressure within the container by the addition of an inert gas like helium affect the amount of the Cl2 present at equilibrium for the following reaction?
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