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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 12, Problem 14E
Textbook Problem
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Where did Earth’s water come from?

Interpretation Introduction

Interpretation:

The formation of water on earth is to be determined.

Concept Introduction:

Water is a common liquid that is present on the Earth.

It is also known as universal solvent. It can dissolve a wide range of organic and inorganic solutes.

Water is vital for the existence of all living animals. Without water, no life form can exist, it constitutes an important part of rivers, lakes, streams, clouds, snow and ice.

Water is truly an unusual molecule such that being a low molar mass compound, it exists as a liquid at room temperature and has an anonymously high boiling point.

Ice floats on water because it has a lower density than water.

The temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere is called boiling point.

A hydrogen bonding is a partially electrostatic force of attraction between a hydrogen atom which is bound to more electronegative atom such as nitrogen, oxygen or fluorine and another atom bearing a lone pair of electrons.

A molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule

Explanation of Solution

Most geologic theories state that volcanic eruptions happened thousands of years ago which lead to the discharge of water into the atmosphere. At that time, the temperature of the Earth was too hot and this water...

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Chapter 12 Solutions

Chemistry In Focus
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Ch. 12 - A representation of liquid water is shown below....Ch. 12 - A mixture initially contains equal masses of...Ch. 12 - An older home has lead pipes. Should you boil the...Ch. 12 - Why are liquid drops spherical in shape?Ch. 12 - Would there be solids and liquids if cohesive...Ch. 12 - From a molecular viewpoint, explain the...Ch. 12 - Explain evaporation from a molecular point of...Ch. 12 - Define each of the following: a. boiling point b....Ch. 12 - Describe the relationship between intermolecular...Ch. 12 - Define each of the following intermolecular forces...Ch. 12 - Why do oil and water not mix?Ch. 12 - Explain how soap works.Ch. 12 - Define volatile and nonvolatile. How are these...Ch. 12 - Why does sweating cool the human body?Ch. 12 - Define each of the following: a. solution b....Ch. 12 - What are the unique properties of water? Why are...Ch. 12 - Where did Earths water come from?Ch. 12 - Explain the hydrologic cycle.Ch. 12 - What are the impurities present in hard water?...Ch. 12 - What are the common classifications of water based...Ch. 12 - How does a water softener work?Ch. 12 - List the four types of contaminants commonly found...Ch. 12 - Which water contaminants pose immediate health...Ch. 12 - What steps should be taken to minimize intake from...Ch. 12 - What is the SDWA?Ch. 12 - Explain how drinking water is treated before being...Ch. 12 - Is home water treatment necessary for health...Ch. 12 - Explain how each of the following home...Ch. 12 - Explain the concerns that groups like the EWG or...Ch. 12 - Butane is a gas at room temperature, and hexane is...Ch. 12 - One of the following molecules is a solid at room...Ch. 12 - Which compound would you expect to have the...Ch. 12 - Which compound would you expect to have the...Ch. 12 - All the following are liquids at room temperature....Ch. 12 - Which liquid would you expect to be least...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - What are the criteria used by the perfume industry...Ch. 12 - Two nonpolar substances with similar structures...Ch. 12 - What is the molarity of a solution that contains...Ch. 12 - What is the molarity of a solution that contains...Ch. 12 - How many grams of sucrose (C12H22O11) are present...Ch. 12 - How many grams of glucose (C6H12O6) are present in...Ch. 12 - How many grams of NaCl are present in 225mLofa2.3%...Ch. 12 - How many grams of NaF are present in 4.5 L of a...Ch. 12 - A 250-g sample of hard water contains...Ch. 12 - A 15-g sample of water contains 1.110-3gofCaCO3....Ch. 12 - Tap water is often fluoridated with a sodium...Ch. 12 - A softened water sample contains 245 ppm Na. If a...Ch. 12 - A 475-mL sample of water is extracted from a well...Ch. 12 - A 255-mL sample of water is taken from a tap and...Ch. 12 - A water sample is found to be high in lead...Ch. 12 - Your water provider posts an alert in the local...Ch. 12 - The quote by Roger Joseph Boscovich at the...Ch. 12 - Explain the difference between a polar molecule...Ch. 12 - The EPA has become concerned over the use of lead...Ch. 12 - When water is boiled, it is converted into a gas....Ch. 12 - Suppose a perfume contained the following two...Ch. 12 - Explain what you think might be occurring in dry...Ch. 12 - Over half of our nations drinking water contains...Ch. 12 - The following drawing shows a molecular view of a...

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