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A solution contains one or more of the following ions: Hg22+, Ba2+, and Fe2+. When potassium chloride is added to the solution, a precipitate forms. The precipitate is filtered off and potassium sulfate is added to the remaining solution, producing no precipitate. When potassium carbonate is added to the remaining solution, a precipitate occurs. Which ions were present in the original solution? Write net ionic equations for the formation of each of the precipitates observed.
a gaseous mixture of rm o2 and rm n2 contains 31.8 nitrogen by mass. what is the partial pressure of oxygen in the
Find the energy eigenstates for the system. Compute the normalization constant for these eigenstates. What is the boundary condition for this problem. What does this restrict the allowed energies of the system to be? e) What is the degeneracy of t..
electorde to one side of the cell and the standard hydrogen electorde to the other side of the cell. If the temperature of this cell is 10.25 degree C , what is the electrochemical potential of this cell? E Ni2+/Ni= -0.230V
Can you rationalize the difference between exo-selective reaction with furan and endo-selective reaction with cyclopentdiene?
Write a net ionic equation accounting for this. For the reaction in part a, write the equilibrium constant expression and calculate the equilibrium constant from a consideration of Kb and Kw.
If you want to make 250 ml .100 M calcium chloride solution, how many grams of CaCl2 will you need.
In the following buffer system, what happens to the concentration of the highlighted molecule if you add base in the form of OH-. HF + NaF + H2O F- + H3O+ + Na+
A weak acid HCN is in solution with dissolved sodium cyanide, NaCN. If NaOH is added which chemical will react with the added NaOH to keep the pH from changing?
nitrogen and hydrogen form the compound NH3 how many hooks would dalton put on the nitrogen atom to explain this compound?
If the solubility producet Ksp for silver phosphate is 1.8x10^-18, what is the molar solubility of silver phosphate in water at the same temperature
For the simple cubic crystal structure, in terms of the atomic radius, R, determine the distance between the centers of adjacent atoms along the [120] direction.
By substituting in the Schrodinger equation for rotation in 3-dimensions, show that the rotational wave function (5/16pi)^(1/2) (3cos^2(theta-1)) is an eigenfunction of the total energy operator. Determine the energy eigenvalue.
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