Chemistry
Chemistry, 29.06.2019 15:30, averyrichard101

What happens to energy during the formation of a solution?

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Biology, 03.07.2019 11:10, christopherandp66l91
An ion can be removed from an aqueous solution by 1. the formation of a gas that escapes. 2. formation of a precipitate. 3. the formation of what is essentially a nonelectrolyte. 4. all of these
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Chemistry, 29.07.2019 17:10, victorialeverp714lg
The formation constant (kf) of a complex depends on several factors, and it can also communicate information about the complex. which of the following statements about the formation constant are true? select all that apply the complex [ni(en)3]2+ is more stable than the complexes [ni(nh3)6]2+ and [ni(h2o)6]2+. the value of the formation constant always increases as the number of ligands increases. steric hindrance of ligands will generally reduce the value of the formation constant. the coordination number of the central metal ion is related to the formation constant of the complex. complexes formed with v2+ are more stable than complexes formed with v5+. part b) for the complex formation reaction where m is any metal and l is any ligand, m++2l? [ml2]+ kf is the formation constant for the complex at equilibrium and ? g? is the gibbs free energy change for the reaction at equilibrium.the formation constant (kf) can be related to the gibbs free energy change (? g? ) for a reaction by the equation ? g? =? rtln kf where t is the temperature in kelvins and r is the gas constant equal to 8.314 j? k? 1? mol? 1. the complex formation is generally a spontaneous process; thus, the gibbs free energy change is negative. calculate the formation constant for the formation of [ni(nh3)2(h2o)4]2+ from [ni(h2o)6]2+, given that ? g? is ? 29.0kj? mol? 1 at 298 k. kf=? part c) in calculating the concentration of [cu(nh3)4]2+ from [cu(h2o)4]2+, the stepwise formation constants are as follows: k1=1.90�104 k2=3.90�103 k3=1.00�103 k4=1.50�102 calculate the overall formation constant (kf) for the formation of [cu(nh3)4]2+from [cu(h2o)4]2+. kf=?
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Chemistry, 27.09.2019 20:30, robert7248
potassium iodide solution, lead(ll) nitrate solutionwhat were your observations ? {there are two of them}a) change in colorb) formation of a gasc) formation of a solidod) change in energy
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Chemistry, 22.10.2019 23:50, 1576729
Write out defect formation reactionsusing kroger-vink notationand balance theelectrical charge and mass1)schottky defectformation in mgo2)frenkel defect formation in zro23)electron and hole formation in batio34)solid solution formation of kcl in nacl(k+substitute na+)5)solid solution formation of cao in zro2(ca2+substitute zr4+)6)solid solution formation of cao in zro2(ca2+takes interstitial sites
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