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Explain how do the densities of metals calculated? Could this method be utilized for determining the density of mercury as well? Briefly define answer, Explain what know about mercury as an element?
The equilibrium constant for the following reaction is .20 at 100 degrees C. if an equilibrium mixture contains solid carbon, [H2O]=.40 M, and [CO]=.40 M,what is the [H2]? C(s)+H2O(g) CO(g)+H2(g)
A 0.660 mol sample of HI was injected into a 2.00 L reaction vessel held at 400ºC. Calculate the concentration of H2 equilibrium.
What is the pH of the solution after 50.0 mL of base has been added? What is the pH of the solution at the equivalence point
Consider the titration of 25.0 mL or 0.010 M Sn^2+ by 0.050 M TI^3+ in 1 M HCL, using pt and saturated calomel electrodes to find the endpoint.
A sample of N2 (g) effuses through a tiny hole in 19.0 s. How long would it take for a sample of N2O2 (g) to effuse under the same conditions
Draw a potential energy diagram that represents the three step mechanism for the reaction and label the reactants and products for the overall reaction. Assume the overall reaction is endothermic
Draw a newman projection (about the C3-C4 bond) of the most stable conformation of 2,2,3,4,5,5 hexamethyl hexane for the meso stereoisomer.
When the reaction that occurs finally ceases, what will be the mass of unreacted copper in the bar? What will be the mass of silver metal that "plates out" of solution (that is, what mass of silver metal is produced by the reaction)
Suppose you were given a pure stereoisomer that rotated the plane polarized light either +60 degrees or -120 degrees, i.e a uniform colour is observed for both of these readings.
What is the cell potential for the reaction Mg (s)+ Fe^2+(aq) rightarrow Mg^2+(aq)+ Fe (s) at 83\;^\circ C when [Fe ^2+] = 3.60 M and [Mg^2+] = 0.310 M.
Ammonia has a melting point of 195 K and a normal boiling point of 240 K. At 225 K and 1atm, ammonia exists primarily as
what mass of MgNH4PO4 precipitated when 200 mL of 1%(w/v) solution of MgCl2 were treated with 40 mL of 0.1753 M Na3PO4 and excess of NH4+ what was the molarity of the excess reagent (Na3PO4 or MgCl2) after the precipitation was complete
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