World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN: 9781133109655
Author: Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher: Brooks / Cole / Cengage Learning
Question
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Chapter 4, Problem 51A

(a)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (a) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(a)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “a” is NaH2PO4.

Explanation of Solution

The cation is Na+ (sodium) and anion is H2PO42 (dihydrogen phosphate). To make the compound neutral, we need two Na+ and one H2PO42.

(b)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (b) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(b)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “b” is LiClO4.

Explanation of Solution

The cation is Li+ (lithium) and anion is ClO4 (perchlorate). To make the compound neutral, we need one Li+ and one ClO4.

(c)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (c) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(c)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “c” is Cu(HCO3)2.

Explanation of Solution

The cation is Cu2+ (copper) and anion is HCO3 (hydrogen carbonate). To make the compound neutral, we need one Cu2+ and two HCO3.

(d)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (d) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(d)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “d” is CH3COOK

Explanation of Solution

The cation is K+ (potassium) and anion is CH3COO (acetate). To make the compound neutral, we need one K+ and one CH3COO.

(e)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (e) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(e)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “e” is BaO2.

Explanation of Solution

The cation is Ba2+ (barium) and anion is O22 (peroxide). To make the compound neutral, we need one Ba2+ and O22.

(f)

Interpretation Introduction

Interpretation: Correct formula of the ionic compound (f) needs to be determined.

Concept introduction: Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions) in such a ratio that the overall charge on the molecule is zero, that is, that molecule is neutral.

Compounds are named by writing the name of the cation first followed by the name of the anion.

Generally, the names of the polyatomic anion ends with −ate with a few exceptions.

(f)

Expert Solution
Check Mark

Answer to Problem 51A

The correct formula for “f” is Cs2SO3.

Explanation of Solution

The cation is Cs+ (cesium) and anion is SO32 (sulfite). To make the compound neutral, we need two Cs+ and one SO32 .

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