(a) Interpretation: The number of unpaired electrons for Sc 3 + should be predicted. Concept introduction: Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration. According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

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Answer 1

Question

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

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There is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS). Ca, ppm V, ppm SCa, arb. units SV, arb. units 20.0 10.0 14375.11 14261.02 40.0 10.0 36182.15 17997.10 60.0 10.0 39275.74 12988.01 80.0 10.0 57530.75 14268.54 100.0…

A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C. H₂O(g) + C₁₂O(g) = 2 HOCl(g) K = 0.0900 at 25°C с Calculate the equilibrium concentrations of each gas at 25 °C. [H₂O]= [C₁₂O]= [HOCI]= M Σ M

What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?

Answer 2

Question

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Expert Solution & Answer

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See solution

Answer 3

Question

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 6

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 7

Chapter 21, Problem 21.39SP

Interpretation Introduction

(a)

Interpretation:

The number of unpaired electrons for Sc3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The number of unpaired electrons for Co2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The number of unpaired electrons for Mn3+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 12

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 13

Interpretation Introduction

(d)

Interpretation:

The number of unpaired electrons for Cr2+ should be predicted.

Concept introduction:

Electronic distribution of atoms and molecules in atomic or molecular orbital is referred to as electron configuration.

According to the Hund’s rule; the pairing of electrons takes place when all the orbitals with equal in energy are first singly filled.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 21 - Prob. 21.1P Ch. 21 - Prob. 21.2A Ch. 21 - Prob. 21.3P Ch. 21 - Prob. 21.4A Ch. 21 - Prob. 21.5P Ch. 21 - Prob. 21.6A Ch. 21 - Prob. 21.7P Ch. 21 - Prob. 21.8A Ch. 21 - Which of the following [Pt( H 2O)2Cl3Br]...Ch. 21 - Prob. 21.10A

Solution Summary: The author explains that the number of unpaired electrons for Sc3+ should be predicted.

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