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Which of the following compounds precipitates from a solution that has the concentrations indicated? (See Appendix J for Ksp values.) (a) CaCO3: [Ca2+] = 0.003 M, [CO32−][CO32−] = 0.003 M (b) Co(OH)2: [Co2+] = 0.01 M, [OH–] = 1 ×× 10–7 M (c) CaHPO4: [Ca2+] = 0.01 M, [HPO42−][HPO42−] = 2 ×× 10–6 M (d) Pb3(PO4)2: [Pb2+] = 0.01 M, [PO43−][PO43−]= 1 ×× 10–13 M

Which of the following compounds precipitates from a solution that has the concentrations indicated? (See Appendix J for Ksp values.) (a) CaCO3: [Ca2+] = 0.003 M, [CO32−][CO32−] = 0.003 M (b) Co(OH)2: [Co2+] = 0.01 M, [OH–] = 1 ×× 10–7 M (c) CaHPO4: [Ca2+] = 0.01 M, [HPO42−][HPO42−] = 2 ×× 10–6 M (d) Pb3(PO4)2: [Pb2+] = 0.01 M, [PO43−][PO43−]= 1 ×× 10–13 M

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section17.6: Equilibria Involving Complex Ions
Problem 1.3ACP: Use the formation constant of [Au(CN)2] in Appendix K to determine the equilibrium concentration of...
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31) Which of the following compounds precipitates from a solution that has the concentrations indicated? (See Appendix J for Ksp values.)

(a) CaCO3: [Ca2+] = 0.003 M, [CO32−][CO32−] = 0.003 M

(b) Co(OH)2: [Co2+] = 0.01 M, [OH–] = 1 ×× 10–7 M

(c) CaHPO4: [Ca2+] = 0.01 M, [HPO42−][HPO42−] = 2 ×× 10–6 M

(d) Pb3(PO4)2: [Pb2+] = 0.01 M, [PO43−][PO43−]= 1 ×× 10–13 M

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