   Chapter 2, Problem 43PS

Chapter
Section
Textbook Problem

Give the formula and the number of each ion that makes up each of the following compounds:(a) K2S(b) CoSO4(c) KMnO4(d) (NH4)3PO4(e) Ca(CIO)2(f)NaCH3CO2

(a)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

Explanation

In the given ionic compound K2S, there are K ion and S ion present. Since the potassium is group IA element, then the charge will be 1+ and thereby the charge of S must be 2- to balance the 2+ charge of two  K ions

(b)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

(c)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

(d)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

(e)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

(f)

Interpretation Introduction

Interpretation:

For the given ionic compounds, the number and formula of constituted ions present are needed to be determined.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound.

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