04 Question (1 point) A 1.00-L solution contains 4.00*10-4 M Cu(NO3)2 and 1.00×10% Methylenediamine (en). The Ky for Cu(en)22 is 1.00 x 1020
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Cu?+ (aq) + 2en(aq) Cu(en)}+ (aq)
(cu(en)}" ]
(Cu2+ ][en]
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What is the concentration of Cu2(aq) in the solution?
2.6
x 10-13 M
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An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.