   Chapter 3.5, Problem 3.3CYU

Chapter
Section
Textbook Problem

In each of the following cases, does a precipitation reaction occur when solutions of the two water-soluble reactants are mixed? Give the formula of any precipitate that forms, and write a balanced chemical equation for the precipitation reactions that occur.(a) sodium carbonate and copper(11) chloride(b) potassium carbonate and sodium nitrate(c) nickel(11) chloride and potassium hydroxide

(a)

Interpretation Introduction

Interpretation:

The formula of precipitate that formed by given compound has to be written and the balanced chemical formula for the precipitation reaction occurred should be written.

Concept Introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Most of the ionic compounds are soluble in water, very few of the ionic compounds are sparingly soluble, and some of the ionic compounds are insoluble in water.  When it is soluble in water ions gets separated in the solution.

Soluble compounds in water

Almost all the salts of Na+, K+, NH4+, salts of nitrate (NO3-), chlorate (ClO3-), Perchlorate (ClO4-), Acetate (CH3CO2-) are soluble.

Almost all the salts of Cl-, Br-, I-(halides) are soluble. But some of the halides are (Ag+, Hg22+, Pb2+) insoluble.

Salts of F- are soluble. But some of the fluoride salt of Mg2+, Ca2+, Sr2+, Ba2+, Pb2+ are insoluble.

Salts of sulfate (SO42-) are soluble. But sulfates of Ca2+, Sr2+, Ba2+, Pb2+, Ag+, are insoluble.

Insoluble compounds in water:

Most of the salts of carbonate (CO32-), phosphate (PO43-), Oxalate (C2O42-), Chromate (CrO42-), sulfide (S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble.

Most of the metal hydroxides and oxides are insoluble in water but some of the alkali metal hydroxides, Ba(OH)2and Sr(OH)2 are soluble in water.

Explanation

Reactant is sodium carbonate (Na2CO3) and copper (II) chloride (CuCl2).

Sodium carbonate (Na2CO3) is reaction with copper (II) chloride (CuCl2). which forms the possible exchangeable products is copper carbonate (CuCO3) and sodium chloride (NaCl).

The reaction is given below,

Most of the salts of carbonate (CO32-), phosphate (PO43-), Oxalate (C2O42-), Chromate (CrO42-), sulfide (S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble

(b)

Interpretation Introduction

Interpretation:

The formula of precipitate that formed by given compound has to be written and the balanced chemical formula for the precipitation reaction occurred should be written.

Concept Introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Most of the ionic compounds are soluble in water, very few of the ionic compounds are sparingly soluble, and some of the ionic compounds are insoluble in water.  When it is soluble in water ions gets separated in the solution.

Soluble compounds in water

Almost all the salts of Na+, K+, NH4+, salts of nitrate (NO3-), chlorate (ClO3-), Perchlorate (ClO4-), Acetate (CH3CO2-) are soluble.

Almost all the salts of Cl-, Br-, I-(halides) are soluble. But some of the halides are (Ag+, Hg22+, Pb2+) insoluble.

Salts of F- are soluble. But some of the fluoride salt of Mg2+, Ca2+, Sr2+, Ba2+, Pb2+ are insoluble.

Salts of sulfate (SO42-) are soluble. But sulfates of Ca2+, Sr2+, Ba2+, Pb2+, Ag+, are insoluble.

Insoluble compounds in water:

Most of the salts of carbonate (CO32-), phosphate (PO43-), Oxalate (C2O42-), Chromate (CrO42-), sulfide (S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble.

Most of the metal hydroxides and oxides are insoluble in water but some of the alkali metal hydroxides, Ba(OH)2and Sr(OH)2 are soluble in water.

(c)

Interpretation Introduction

Interpretation:

The formula of precipitate that formed by given compound has to be written and the balanced chemical formula for the precipitation reaction occurred should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Most of the ionic compounds are soluble in water, very few of the ionic compounds are sparingly soluble, and some of the ionic compounds are insoluble in water.  When it is soluble in water ions gets separated in the solution.

Soluble compounds in water

Almost all the salts of Na+, K+, NH4+, salts of nitrate (NO3-), chlorate (ClO3-), Perchlorate (ClO4-), Acetate (CH3CO2-) are soluble.

Almost all the salts of Cl-, Br-, I-(halides) are soluble. But some of the halides are (Ag+, Hg22+, Pb2+) insoluble.

Salts of F- are soluble. But some of the fluoride salt of Mg2+, Ca2+, Sr2+, Ba2+, Pb2+ are insoluble.

Salts of sulfate (SO42-) are soluble. But sulfates of Ca2+, Sr2+, Ba2+, Pb2+, Ag+, are insoluble.

Insoluble compounds in water:

Most of the salts of carbonate (CO32-), phosphate (PO43-), Oxalate (C2O42-), Chromate (CrO42-), sulfide (S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble.

Most of the metal hydroxides and oxides are insoluble in water but some of the alkali metal hydroxides, Ba(OH)2and Sr(OH)2 are soluble in water.

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