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In an excess of NH3(aq), Cu2+ ion forms a deep blue complex ion, Cu(NH3)4 2+, which has a formation constant Kf=5.6×10^11. Calculate the concentration of Cu2+ in a solution prepared by adding 4.9×10^?3mol of CuSO4 to 0.480L of 0.35M NH3.
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A 3.15- sample of NH4NO3 is introduced intoan evacuated 2.26- L flask and then heated to 245 C. What is the total gas pressure, in atmospheres, in the flask at245 C when the NH4NO3 has completely decomposed?
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