The amount of solar energy received by earth is given. Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth is to be calculated. Mass of coal required to be burned to provide the same amount of energy is to be stated. Concept introduction: Energy change of a system can be calculated by Einstein’s theory of relativity . When a system loses or gains energy, it also gains or loses a quantity of mass given by E/c 2 . To determine: Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth and the mass of coal required to be burned to provide the same amount of energy.

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(f) SO: Best Lewis Structure 3 e group geometry:_ shape/molecular geometry:, (g) CF2CF2 Best Lewis Structure polarity: e group arrangement:_ shape/molecular geometry: (h) (NH4)2SO4 Best Lewis Structure polarity: e group arrangement: shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles): Sketch (with angles):

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Chapter 19, Problem 42E

Interpretation Introduction

Interpretation: The amount of solar energy received by earth is given. Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth is to be calculated. Mass of coal required to be burned to provide the same amount of energy is to be stated.

Concept introduction: Energy change of a system can be calculated by Einstein’s theory of relativity. When a system loses or gains energy, it also gains or loses a quantity of mass given by E/c2 .

To determine: Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth and the mass of coal required to be burned to provide the same amount of energy.

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(f) SO: Best Lewis Structure 3 e group geometry:_ shape/molecular geometry:, (g) CF2CF2 Best Lewis Structure polarity: e group arrangement:_ shape/molecular geometry: (h) (NH4)2SO4 Best Lewis Structure polarity: e group arrangement: shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles): Sketch (with angles):

1. Problem Set 3b Chem 141 For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the molecule is polar or non-polar (iv) (a) SeF4 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: (b) AsOBr3 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles):

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