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Ions in Aqueous Solution

NO 3 1–. NO 3 1–. NO 3 1–. NO 3 1–. Pb 2+. Pb 2+. Na 1+. Na 1+. I 1–. I 1–. Ions in Aqueous Solution. Print Copy of Lab. Pb(NO 3 ) 2 (s). + H 2 O(l). Pb(NO 3 ) 2 (aq). Pb 2+ (aq) + 2 NO 3 1– (aq). add water. in solution. dissociation :. NaI(s) . + H 2 O(l). NaI(aq).

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Ions in Aqueous Solution

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  1. NO31– NO31– NO31– NO31– Pb2+ Pb2+ Na1+ Na1+ I1– I1– Ions in Aqueous Solution Print Copy of Lab Pb(NO3)2(s) + H2O(l) Pb(NO3)2(aq) Pb2+(aq) + 2 NO31–(aq) add water in solution dissociation: NaI(s) + H2O(l) NaI(aq) Na1+(aq) + I1–(aq) Mix them and get… Balance to get overall ionic equation… Cancel spectator ions to get net ionic equation…

  2. Pb(NO3)2(aq) + 2 NaI(aq) + 2 Na1+(aq) PbI2(s) + 2 NO31–(aq) NO31– NO31– NO31– NO31– Pb2+ Pb2+ Na1+ Na1+ Na1+ Na1+ I1– I1– I1– I1– + 2 Na1+(aq) + 2 I1–(aq) Pb2+(aq) + 2 NO31–(aq) + 2 Na1+(aq) PbI2(s) + 2 NO31–(aq) Pb2+(aq) + 2 I1–(aq) PbI2(s) Solubility Chart Mix them and get… solid in solution Balance to get overall ionic equation… Cancel spectator ions to get net ionic equation…

  3. Zn(NO3)2(aq) + Ba(OH)2(aq) + Ba2+(aq) Zn(OH)2(s) + 2 NO31–(aq) OH1– NO31– Ba2+ Zn2+ NO31– OH1– + Ba2+(aq) + 2OH1–(aq) Zn2+(aq) + 2 NO31–(aq) + Ba2+(aq) Zn(OH)2(s) + 2 NO31–(aq) Zn2+(aq) + 2 OH1–(aq) Zn(OH)2(s) Solubility Chart Mix together Zn(NO3)2(aq) and Ba(OH)2(aq): Mix them and get… Zn(NO3)2(aq) Ba(OH)2(aq) Zn2+(aq) + 2 NO31–(aq) Ba2+(aq) + 2 OH1–(aq) Balance to get overall ionic equation… Cancel spectator ions to get net ionic equation…

  4. Pre-lab: • 1. What ions are present in the following solutions? • NaCl(aq) ____________________ AgNO3(aq) ____________________ • When these solutions are mixed together, a precipitate is seen. What are the new combinations of ions that could have formed the precipitate? • ____________________ and ____________________ • Using the solubility table, which new combination will form a precipitate? • ____________________  • Which new combination will remain in solution? • ____________________ • 5. Write the overall reaction equation for this reaction. Be sure to indicate the correct phase (reaction condition) for each reactant and each product. • 6. Write the net ionic equation for this reaction. Again, include the phases (reaction conditions). • 7. Explain why you would expect no reaction between solutions of KOH(aq) and NaOH(aq). Na1+(aq) Cl1-(aq) Ag1+(aq) NO31-(aq) Ag1+(aq) Na1+(aq) NO31-(aq) Cl1-(aq) Ag1+(aq) AgCl(s) Cl1-(aq) Na1+(aq) NO31-(aq) Na1+(aq) + Na1+(aq) + NO31-(aq) + Cl1-(aq) + Ag1+(aq) + NO31-(aq) AgCl(s) Ag1+(aq) + Cl1-(aq) AgCl(s) When the cations switch places they end with a hydroxide (no new combination is formed)

  5. Co2+(aq) + 2 OH1-(aq) Co(OH)2(s) 3. Co2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + 2 OH1-(aq) Co(OH)2(s) + 2 Na1+(aq) + 2 NO31-(aq) Co2+(aq) + 2 OH1-(aq) Co(OH)2(s) 9. Pb2+(aq) + 2 NO31-(aq) + 2 K1+(aq) + 2 OH1- (aq) Pb(OH)2(s) + 2 K1+(aq) + 2 NO31-(aq) Pb2+(aq) + 2 OH1-(aq) Pb(OH)2(s) 10. Pb2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + 2 OH1-(aq) Pb(OH)2(s) + 2 Na1+(aq) + 2 NO31-(aq) Pb2+(aq) + 2 OH1-(aq) Pb(OH)2(s) 11. Pb2+(aq) + 2 NO31-(aq) + Co2+(aq) + 2Cl1-(aq) PbCl2(s) + Co2+(aq) + 2 NO31-(aq) Pb2+(aq) + 2 Cl1-(aq) PbCl2(s) 12. 3 Pb2+(aq) + 6 NO31-(aq) + 2 Fe3+(aq) + 6 Cl1-(aq) 3 PbCl2(s) + 2 Fe3+(aq) + 6 NO31-(aq) Pb2+(aq) + 2 Cl1-(aq) PbCl2(s) Key Print Copy of Lab Reactions Between Ions in Aqueous Solutions spectator ions 2. Co2+(aq) + 2 NO31-(aq) + 2 K1+(aq) + 2 OH1-(aq) Co(OH)2(s) + 2 K1+(aq) + 2 NO31-(aq)

  6. Key Reactions Between Ions in Aqueous Solutions 15. Cu2+(aq) + 2 NO31-(aq) + 2 K1+(aq) + 2OH1-(aq) Cu(OH)2(s) + 2 K1+(aq) + 2 NO31-(aq) Cu2+(aq) + 2 OH1-(aq) Cu(OH)2(s) 16. Cu2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + 2OH1-(aq) Cu(OH)2(s) + 2 Na1+(aq) + 2 NO31-(aq) Cu2+(aq) + 2 OH1-(aq) Cu(OH)2(s) 20. Fe3+(aq) + 3 Cl1-(aq) + 3 K1+(aq) + 3 OH1-(aq) Fe(OH)3(s) + 3 K1+(aq) + 3 Cl1-(aq) Fe3+(aq) + 3 OH1-(aq) Fe(OH)3(s) 21. Fe3+(aq) + 3 Cl1-(aq) + 3 Na1+(aq) + 3 OH1-(aq) Fe(OH)3(s) + 3 Na1+(aq) + 3 Cl1-(aq) Fe3+(aq) + 3 OH1-(aq) Fe(OH)3(s) 24. Co2+(aq) + 2 Cl1-(aq) + 2 K1+(aq) + 2 OH1-(aq) Co(OH)2(s) + 2 K1+(aq) + 2 Cl1-(aq) Co2+(aq) + 2 OH1-(aq) Co(OH)2(s) 25. Co2+(aq) + 2 Cl1-(aq) + 2 Na1+(aq) + 2 OH1-(aq) Co(OH)2(s) + 2 Na1+(aq) + 2 Cl1-(aq) Co2+(aq) + 2 OH1-(aq) Co(OH)2(s)

  7. chromate hydroxide carbonate bromide chloride sulfide sulfate nitrate phosphate iodide acetate Legend SOLID SOLID AQUEOUS i = insoluble ss = slightly soluble s = soluble d = decomposes n = not isolated

  8. chromate hydroxide carbonate bromide chloride sulfide sulfate nitrate phosphate iodide acetate Legend s = solid aq = aqueous d = decomposes n = not isolated

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