Copper Nitrate And Sodium Hydroxide

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Double Substitution Reactions

Atmospheric precipitation Reactions

Introduction

Approximately 2 mL of Solution A is added to a sample of Solution B with a dropping pipet. If a precipitate forms, the resulting precipitate is supended in the mixture. The mixture is then stirred with a glass stirring rod and the precipitate is allowed to settle for about a minute.

sodium hydroxide and copper(2) nitrate

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Adding colorless sodium hydroxide to blue copper(II) nitrate produces a low-cal bluish precipitate.

Solution A: 0.5 Grand sodium hydroxide (colorless)
Solution B: 0.2 M copper(Ii) nitrate (bluish)
Precipitate: (light bluish)
Cu(NO_iii)₂(aq) + 2 NaOH(aq) --> Cu(OH)₂(s) + ii NaNO_iii(aq)

(2)

Molecular Representation

The mixing of solutions of copper(II) nitrate and sodium hydroxide results in the formation of a mixture composed of a solution of sodium nitrate and a copper(II) hydroxide precipitate.

Slide i: This represents a copper nitrate solution. The bronze colored balls are copper(II) ions. Nitrate ions are represented by a blue ball (nitrogen) surrounded by three crimson balls (oxygen).

Slide 2: This represents a sodium hydroxide solution. The blue-grey balls are sodium ions. Hydroxide ions are represented by a grey brawl (hydrogen) next to a red ball (oxygen).

Slide 3: This represents a mixture of copper(II) ions, nitrate ions, sodium ions and hydroxide ions equally they might appear earlier reaction.

Slide 4: This is a representation of the mixture present later on the reaction is complete. Information technology shows copper(II) hydroxide solid, sodium ions and nitrate ions.

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sodium hydroxide and nickel(Ii) nitrate

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Calculation colorless sodium hydroxide to greenish nickel(Ii) nitrate produces a low-cal greenish precipitate.

Solution A: 0.5 Chiliad sodium hydroxide (colorless)
Solution B: 0.two M nickel(Ii) nitrate (light-green)
Precipitate: (low-cal light-green)
Ni(NO₃)₂(aq) + 2 NaOH(aq) --> Ni(OH)_ii(s) + ii NaNO₃(aq)

(two)

sodium hydroxide and silver nitrate

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Adding colorless sodium hydroxide to colorless silver nitrate produces a brown precipitate.

Solution A: 0.5 Thousand sodium hydroxide (colorless)
Solution B: 0.1 Grand silver nitrate (colorless)
Precipitate: (brown)
2 AgNO₃(aq) + 2 NaOH(aq) --> Ag_twoO(s) + 2 NaNO_iii(aq) + H_twoO(l)

(2)

sodium hydroxide and iron(III) nitrate

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Adding colorless sodium hydroxide to dark yellowish iron(Iii) nitrate produces a red-orange precipitate.

Solution A: 0.5 Thou sodium hydroxide (colorless)
Solution B: 0.two M iron(III) nitrate (dark yellow)
Precipitate: (red-orange)
Fe(NO₃)₃(aq) + 3 NaOH(aq) --> Fe(OH)₃(s) + 3 NaNO₃(aq)

(2)

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