Chem30s - Solutions & Dissociation

Select the dissociation equation for NaCl and show the physical states of all species involved.

• NaCl --> Na⁺ + Cl^-

• NaCl_(s) --> Na⁺_(aq) + Cl^-_(aq)

• NaCl --> Na + Cl

• NaCl_(s) --> Na_(aq) + Cl_(aq)

Select the dissociation equation for NaOH and show the physical states of all species involved.

• NaOH_(s) --> Na⁺_(aq) + OH^-_(aq)

• NaOH --> Na⁺ + OH^-

• NaOH --> Na + OH

• NaOH_(s) --> NaO^-_(aq) + H⁺_(aq)

Select the dissociation equation for LiOH and show the physical states of all species involved.

• LiOH_(aq) --> Li⁺_(s) + OH^-_(s)

• LiOH_(s) --> Li⁺_(aq) + OH^- _(aq)

• LiOH_(s) --> Li⁺_(aq) + O_2(aq) + H_2(aq)

• LiOH_(s) --> Li⁺_(aq) + O₂^2-_(aq) + H₂⁺_(aq)

Select the dissociation equation for KMnO₄ and show the physical states of all species involved.

• KMnO_4(s) --> K⁺_(aq)+ Mn⁴⁺_(aq) + O₄ ^-_(aq)

• KMnO₄ --> K⁺+ MnO₄ ^-

• KMnO_4(s) --> K⁺_(aq) + MnO₄ ^-_(aq)

• KMnO₄ --> K⁺+ Mn⁴⁺ + O₄ ^-

Select the dissociation equation for AgClO₃ and show the physical states of all species involved.

• AgClO_3(s) --> Ag_(aq) + ClO_3(aq)

• AgClO_3(s) -->Ag⁺_(aq) + Cl_{2 (aq)} + O_2(aq)

• AgClO_3(s) -->Ag⁺_(aq) + Cl^-_(aq) + 3O^2-_(aq)

• AgClO_3(s) --> Ag⁺_(aq) + ClO₃^-_(aq)

Select the dissociation equation for PbCrO₄ and show the physical states of all species involved.

• PbCrO_4(s) ↔ Pb²⁺_(aq) + CrO₄^4-_(aq)

• PbCrO_4(s) ↔ Pb²⁺_(aq) + CrO₄^2-_(aq)

• PbCrO_4(s) ↔ Pb⁺_(aq) + CrO₄^-_(aq)

• PbCrO_4(s) ↔ Pb⁴⁺_(aq) + CrO₄^4-_(aq)

Select the dissociation equation for Fe₂O₃ and show the physical states of all species involved.

• Fe₂O_3(s) ↔ 2Fe³⁺_(aq) + 3O^2-_(aq)

• Fe₂O_3(s) ↔ Fe³⁺_(aq) + O^2-_(aq)

• Fe₂O_3(s) ↔ 2Fe⁺_(aq) + 3O^-_(aq)

• 2Fe₂O_3(s) ↔ 2Fe⁺_(aq) + 3O₂^-_(aq)

Select the dissociation equation for ZnCl₂ and show the physical states of all species involved.

• ZnCl_2(s) --> Zn²⁺_(aq) + Cl^-_(aq)

• ZnCl_2(s) --> Zn⁺_(aq) + 2Cl^-_(aq)

• ZnCl_2(s) --> Zn²⁺_(aq) + 2Cl^-_(aq)

• ZnCl_2(s) --> Zn⁺_(aq) + Cl^-_(aq)

Select the dissociation equation for Ca(NO₃)₂ and show the physical states of all species involved.

• Ca(NO₃)_2(s) -->Ca⁺_(aq) + 2NO₃^- _(aq)

• Ca(NO₃)_2(s) -->Ca²⁺_(aq) + 2NO₃^- _(aq)

• Ca(NO₃)_2(s) -->Ca²⁺_(aq) + NO₃^- _(aq)

• Ca(NO₃)₂ -->Ca⁺ + 2NO₃^-

How do we define a solute?

• Usually a liquid, in which other materials dissolve to form a solution

• A substance that is dissolved in a solution

• A substance with sulfur in it

• When a solution contains a mixture of two substances