Chemistry: The Molecular Nature of Matter and Change
Chemistry: The Molecular Nature of Matter and Change
8th Edition
ISBN: 9781259631757
Author: Martin Silberberg Dr., Patricia Amateis Professor
Publisher: McGraw-Hill Education
Question
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Chapter 2.8, Problem 2.10BFP

(a)

Interpretation Introduction

Interpretation:

The correct formula for copper(II) nitride is to be determined.

Concept introduction:

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(a)

Expert Solution
Check Mark

Answer to Problem 2.10BFP

The correct formula for the compound copper(II) nitride is Cu3N2.

Explanation of Solution

Copper is a transition element. Therefore, it forms more than one ion. The Roman numeral II within the parentheses in the systematic name indicates that copper has a charge of +2 on it. The nitride ion is represented by the formula N3. In order to balance the +2 charge on the copper ion, two nitride ions associate with three copper ions as follows:

3Cu2++2N3Cu3N2

Conclusion

The correct formula for the compound copper(II) nitride is Cu3N2.

(b)

Interpretation Introduction

Interpretation:

The correct name for the compound PbI2 is to be determined.

Concept introduction:

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(b)

Expert Solution
Check Mark

Answer to Problem 2.10BFP

The correct name for the compound PbI2 is lead(II) iodide.

Explanation of Solution

The element lead forms more than one ion (Pb4+and Pb2+). The element iodine belongs to the 7A(17) group in the periodic table and therefore gains an electron to form iodide ion I. To balance the total charge of 2 on the iodide ion, the lead ion must have a charge of +2. The charge on the lead ion is written in Roman numerals within the parentheses next to the metal name in the systematic name. Therefore the correct name for the compound PbI2 is lead(II) iodide.

Conclusion

The correct name for the compound PbI2 is lead(II) iodide.

(c)

Interpretation Introduction

Interpretation:

The correct formula for the compound chromic sulfide is to be determined.

Concept introduction:

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms has the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(c)

Expert Solution
Check Mark

Answer to Problem 2.10BFP

The correct formula for the compound chromic sulfide is Cr2S3.

Explanation of Solution

The chromic ion is represented by the formula Cr3+. The element sulfur belongs to the 6A(16) group in the periodic table. Therefore the element sulfur gains two electrons to form the sulfide ion as follows;

S+2eS2

The chromic and sulfide ions combine in the 2:3 ratio to form the compound chromic sulfide as follows:

2Cr3++3S2Cr2S3

Conclusion

The correct formula for the compound chromic sulfide is Cr2S3.

(d)

Interpretation Introduction

Interpretation:

The systematic name for FeO is to be determined.

Concept introduction:

The general rules for writing the systematic names of ionic compounds are as follows:

1) In binary ionic compounds, the name of the metal is written as the original name whereas the name of the non-metal has the root word with the suffix -ide.

2) In metals that form more than one ion, the Latin root of the metal is followed by a suffix -ous for the ion with lower charge and suffix -ic for the ion with a higher charge. In the systematic name, the name of the metal is followed by the charge on the metal within the parentheses in roman numerals.

3) In the family of two oxoanions, the ion with more oxygen atoms has the non-metal root and a suffix -ate added to it. The ion with fewer oxygen atoms ahs the non-metal root and the suffix -ite added to it.

4) For hydrated ionic compounds, the total number of water molecules are represented by the Greek numerical prefixes followed by the word hydrate.

(d)

Expert Solution
Check Mark

Answer to Problem 2.10BFP

The systematic name for FeO is iron(II) oxide.

Explanation of Solution

The element oxygen is a non-metal from the 6A(16) group in the periodic table. Therefore it gains two electrons to form the oxide ion as follows:

O+2eO2

The element iron forms more than one ion (Fe2+and Fe3+). In order to balance the charge on the oxide ion, the ion that combines with it is the ferrous ion (Fe2+).

Fe2++O2FeO

Therefore, the charge on the ferrous ion is mentioned as Roman numerals within the parentheses next to the metal name in the systematic name.

Conclusion

The systematic name for FeO is iron(II) oxide.

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Chapter 2 Solutions

Chemistry: The Molecular Nature of Matter and Change

Ch. 2.5 - Prob. B2.1PCh. 2.5 - Prob. B2.2PCh. 2.6 - Prob. 2.6AFPCh. 2.6 - Prob. 2.6BFPCh. 2.7 - Prob. 2.7AFPCh. 2.7 - Prob. 2.7BFPCh. 2.8 - Prob. 2.8AFPCh. 2.8 - Prob. 2.8BFPCh. 2.8 - Prob. 2.9AFPCh. 2.8 - Prob. 2.9BFPCh. 2.8 - Prob. 2.10AFPCh. 2.8 - Prob. 2.10BFPCh. 2.8 - Prob. 2.11AFPCh. 2.8 - Prob. 2.11BFPCh. 2.8 - Prob. 2.12AFPCh. 2.8 - Prob. 2.12BFPCh. 2.8 - Prob. 2.13AFPCh. 2.8 - Prob. 2.13BFPCh. 2.8 - Prob. 2.14AFPCh. 2.8 - Prob. 2.14BFPCh. 2.8 - Prob. 2.15AFPCh. 2.8 - Prob. 2.15BFPCh. 2.8 - Prob. 2.16AFPCh. 2.8 - Prob. 2.16BFPCh. 2.8 - Determine the name, formula, and molecular (or...Ch. 2.8 - Prob. 2.17BFPCh. 2.9 - Prob. B2.3PCh. 2 - Prob. 2.1PCh. 2 - List two differences between a compound and a...Ch. 2 - Which of the following are pure substances?...Ch. 2 - Classify each substance in Problem 2.3 as an...Ch. 2 - Explain the following statement: The smallest...Ch. 2 - Prob. 2.6PCh. 2 - Can the relative amounts of the components of a...Ch. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10PCh. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - In our modern view of matter and energy, is the...Ch. 2 - Prob. 2.14PCh. 2 - Which of the following scenes illustrate(s) the...Ch. 2 - Prob. 2.16PCh. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Fluorite, a mineral of calcium, is a compound of...Ch. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27PCh. 2 - Dolomite is a carbonate of magnesium and calcium....Ch. 2 - Prob. 2.29PCh. 2 - Which of Dalton’s postulates about atoms are...Ch. 2 - Use Dalton’s theory to explain why potassium...Ch. 2 - Prob. 2.32PCh. 2 - The following charges on individual oil droplets...Ch. 2 - Prob. 2.34PCh. 2 - When Rutherford’s coworkers bombarded gold foil...Ch. 2 - Prob. 2.36PCh. 2 - Prob. 2.37PCh. 2 - Prob. 2.38PCh. 2 - Prob. 2.39PCh. 2 - Prob. 2.40PCh. 2 - Prob. 2.41PCh. 2 - Prob. 2.42PCh. 2 - Write the notation for each atomic depiction: Ch. 2 - Write the notation for each atomic depiction: Ch. 2 - Draw atomic depictions similar to those in Problem...Ch. 2 - Prob. 2.46PCh. 2 - Prob. 2.47PCh. 2 - Prob. 2.48PCh. 2 - Chlorine has two naturally occurring isotopes,...Ch. 2 - Prob. 2.50PCh. 2 - Prob. 2.51PCh. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55PCh. 2 - Prob. 2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58PCh. 2 - Prob. 2.59PCh. 2 - Prob. 2.60PCh. 2 - Prob. 2.61PCh. 2 - Prob. 2.62PCh. 2 - Prob. 2.63PCh. 2 - Prob. 2.64PCh. 2 - Prob. 2.65PCh. 2 - Prob. 2.66PCh. 2 - Prob. 2.67PCh. 2 - Prob. 2.68PCh. 2 - Prob. 2.69PCh. 2 - Prob. 2.70PCh. 2 - What monatomic ions would you expect radium (Z =...Ch. 2 - Prob. 2.72PCh. 2 - Prob. 2.73PCh. 2 - Prob. 2.74PCh. 2 - Prob. 2.75PCh. 2 - The radii of the sodium and potassium ions are 102...Ch. 2 - Prob. 2.77PCh. 2 - What information about the relative numbers of...Ch. 2 - Prob. 2.79PCh. 2 - Prob. 2.80PCh. 2 - Prob. 2.81PCh. 2 - Prob. 2.82PCh. 2 - Prob. 2.83PCh. 2 - Prob. 2.84PCh. 2 - Prob. 2.85PCh. 2 - Prob. 2.86PCh. 2 - Prob. 2.87PCh. 2 - Prob. 2.88PCh. 2 - Give the systematic names for the formulas or the...Ch. 2 - Prob. 2.90PCh. 2 - Prob. 2.91PCh. 2 - Prob. 2.92PCh. 2 - Prob. 2.93PCh. 2 - Prob. 2.94PCh. 2 - Prob. 2.95PCh. 2 - Prob. 2.96PCh. 2 - Prob. 2.97PCh. 2 - Prob. 2.98PCh. 2 - Prob. 2.99PCh. 2 - Prob. 2.100PCh. 2 - Prob. 2.101PCh. 2 - Prob. 2.102PCh. 2 - Prob. 2.103PCh. 2 - Prob. 2.104PCh. 2 - Prob. 2.105PCh. 2 - Prob. 2.106PCh. 2 - Prob. 2.107PCh. 2 - Prob. 2.108PCh. 2 - Prob. 2.109PCh. 2 - Prob. 2.110PCh. 2 - Prob. 2.111PCh. 2 - Prob. 2.112PCh. 2 - What is the difference between a homogeneous and a...Ch. 2 - Prob. 2.114PCh. 2 - Prob. 2.115PCh. 2 - Prob. 2.116PCh. 2 - Which separation method is operating in each of...Ch. 2 - Prob. 2.118PCh. 2 - Prob. 2.119PCh. 2 - Prob. 2.120PCh. 2 - Prob. 2.121PCh. 2 - Prob. 2.122PCh. 2 - Ammonium dihydrogen phosphate, formed from the...Ch. 2 - Prob. 2.124PCh. 2 - Prob. 2.125PCh. 2 - Prob. 2.126PCh. 2 - Prob. 2.127PCh. 2 - Prob. 2.128PCh. 2 - The following scenes represent a mixture of two...Ch. 2 - Prob. 2.130PCh. 2 - Prob. 2.131PCh. 2 - Prob. 2.132PCh. 2 - Prob. 2.133PCh. 2 - Prob. 2.134PCh. 2 - Prob. 2.135PCh. 2 - Prob. 2.136PCh. 2 - Prob. 2.137PCh. 2 - Prob. 2.138PCh. 2 - Prob. 2.139PCh. 2 - Prob. 2.140PCh. 2 - Prob. 2.141PCh. 2 - Prob. 2.142PCh. 2 - Prob. 2.143PCh. 2 - Prob. 2.144P
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