Chemistry In Focus6th EditionTro, Nivaldo J., Neu, Don. Publisher: Cengage LearningISBN: 9781305084476
Chemistry In Focus
Solutions for Chemistry In Focus
Problem 3.1YT:
Determining the Number of Protons and Electrons in an Ion How many protons and electrons are in the...Problem 3.3YT:
Determining Protons, Neutrons, and Electrons How many protons, neutrons, and electrons are in the...Problem 3.4YT:
Calculating Atomic Mass Magnesium has three naturally occurring isotopes with masses...Problem 3.5YT:
The Mole Concept A diamond, which is pure carbon, contains 0.020 mol of carbon. What is the mass, in...Problem 4SC:
Copper is composed of two naturally occurring isotopes: Cu-63 with a mass of 62.94amuandCu-65 with a...Problem 6SC:
Which pair of elements do you expect to be most similar? a. Mg and Ca b. N and Cl c. Al and C d. S...Problem 7SC:
Which statement is true of the quantum mechanical model, but not of the Bohr model? a. Electrons...Problem 1E:
Why is it important to understand atoms?Problem 11E:
Explain the quantum mechanical model for the atom. How is it different from the Bohr model?Problem 12E:
Give two examples of each: a. alkali metal b. alkaline earth metal c. halogen d. noble gas e. metal...Problem 13E:
Which elements exist as diatomic molecules?Problem 16E:
Determine the charge of each of the following: a silver atom that has lost one electron a bromine...Problem 17E:
Determine the number of protons and electrons in each of the following ions: a.K+b.F-c.N3-d.Al3+Problem 18E:
Determine the number of protons and electrons in each of the following ions: a.Mg2+b.Se2-c.O2-d.Fe3+Problem 19E:
Give the atomic number (Z) and the mass number (A) for each of the following: a. a carbon atom with...Problem 21E:
The following isotopes have applications in medicine. Write their symbols in the form XZA. a....Problem 22E:
The following isotopes are important in nuclear power. Write their symbols in the form XZA. a. U-235...Problem 23E:
14C is used in carbon dating of artifacts. Determine the number of protons and neutrons in 14C.Problem 24E:
40K is used to measure the age of Earth. Determine the number of protons and neutrons in 40K.Problem 27E:
Give electron configurations according to the Bohr model for each of the following elements. Try to...Problem 28E:
Give electron configurations according to the Bohr model for each of the following elements....Problem 32E:
Draw electron configurations for each of the following elements according to the Bohr model....Problem 33E:
Which two of the following elements would you expect to be most similar to each other? Why? Mg, N,...Problem 34E:
Group the following elements into three similar groups of two each: Na, O, Ne, Li, Ar, SProblem 35E:
We have seen that the reactivity of an element is determined by its electron configuration. What is...Problem 36E:
What is the electron configuration of Mg2+? How does its reactivity compare with neutral Mg? How do...Problem 37E:
Classify each of the following elements as a metal, a nonmetal, or a metalloid: a. Cr b. N c. Ca d....Problem 38E:
Classify each of the following as a metal, a nonmetal, or a metalloid: a. Mn b. I c. Te d. Sb e. OProblem 39E:
Calculate the atomic mass of neon (Ne), which is composed of three naturally occurring isotopes with...Problem 40E:
An element has two naturally occurring isotopes. Isotope 1 has a mass of 106.905amu and a relative...Problem 41E:
A fictitious element has two naturally occurring isotopes and has an atomic mass of 29.5amu. a. If...Problem 42E:
Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939amu and a relative abundance...Problem 45E:
How many moles are there in each sample? a. 45 mg Ag b. 28 kg Zn c. 8.71027 He atoms d. 1 He atomProblem 46E:
How many moles are there in each sample? a. 55.0 g Ti b. 16.9 mg Na c. 7.951024 Ne atoms d. 25 Xe...Problem 47E:
What is the mass of each sample? a.1.8 mol S b.0.0067 mol Au c.0.552 mol Cu d.1 Na atomProblem 53E:
A pure gold necklace has a volume of 1.8cm3. How many gold atoms are in the necklace? The density of...Problem 54E:
A titanium bicycle component has a volume of 32cm3. How many titanium atoms are in the bicycle...Problem 55E:
An iron sphere has a radius of 3.4 cm. How many iron atoms are in the sphere? Iron has a density of...Problem 56E:
Calculate the number of atoms in the universe. The following steps will guide you through this...Problem 57E:
The introduction to this chapter states that everything is made of atoms, including ourselves. Does...Problem 58E:
Suppose the absolute value of the charge of the electron was slightly greater than the charge of a...Problem 59E:
When we refer to doughnuts or cookies, we often refer to 1doz of them, which corresponds to 12. Why...Problem 61E:
Why does Avogadros number have such an odd value? Why not pick a nice round number like 1.01024?Browse All Chapters of This Textbook
Chapter 1 - Molecular ReasonsChapter 2 - The Chemist’s ToolboxChapter 3 - Atoms And ElementsChapter 4 - Molecules, Compounds, And Chemical ReactionsChapter 5 - Chemical BondingChapter 6 - Organic ChemistryChapter 7 - Light And ColorChapter 8 - Nuclear ChemistryChapter 9 - Energy For TodayChapter 10 - Energy For Tomorrow: Solar And Other Renewable Energy Sources
Chapter 11 - The Air Around UsChapter 12 - The Liquids And Solids Around Us: Especially WaterChapter 13 - Acids And Bases: The Molecules Responsible For Sour And BitterChapter 14 - Oxidation And ReductionChapter 15 - The Chemistry Of Household ProductsChapter 16 - Biochemistry And BiotechnologyChapter 17 - Drugs And Medicine: Healing, Helping, And HurtingChapter 18 - The Chemistry Of FoodChapter A - Significant Figures
Book Details
Succeed in the course and connect with the microscopic world with CHEMISTRY IN FOCUS. Thoroughly updated with the latest research and developments, this student-friendly book emphasizes the fundamental role the molecular world plays in your daily life. By clearly identifying and explaining connections between the molecular world and microscopic world, the book helps you understand the major scientific, technological, and environmental issues affecting our society today. The book's innovative study aids, such as Self-Check Quizzes and Tests, and technological tools will help you every step of the way as you master the concepts of the course.
Sample Solutions for this Textbook
We offer sample solutions for Chemistry In Focus homework problems. See examples below:
Chapter 1, Problem 1SCChapter 2, Problem 1SCChapter 2, Problem 28EChapter 2, Problem 29EChapter 2, Problem 30Ea) Square meters (m2) in 1 square kilometer (km2). To convert km2 to m2, first write the correct...a) Square centimeters (cm2) in 1 square meter (m2). To convert m2 to cm2, first write the correct...Chapter 2, Problem 46EChapter 3, Problem 3.1YT
Chapter 3, Problem 48EChapter 3, Problem 49EChapter 3, Problem 50EChapter 3, Problem 56EChapter 4, Problem 4.1YTChapter 4, Problem 42Ea) PbO+NH3→Pb+N2+H2O H atom is balanced by multiplying the coefficient 2 with NH3 and the...a) C2H6+O2→CO2+H2O H atom is balanced by multiplying the coefficient 6 with H2O and the coefficient...Chapter 4, Problem 53EChapter 4, Problem 54Ea) 2.3 mol CH4 The equivalence is obtained between moles of CH4 and moles CO2 with the help of the...Chapter 4, Problem 63EChapter 5, Problem 5.1YTChapter 5, Problem 29EChapter 6, Problem 6.1YTGiven information: The frequency of the radio signal is 840KHz. First, the relationship between...Chapter 7, Problem 25EGiven information: The violet edge of spectrum appears at a wavelength of 400 nm. The red edge of...An alpha particle consists of two protons and two neutrons. During alpha decay, reactant reacts and...Chapter 9, Problem 9.1YTChapter 9, Problem 35Ea) Pine wood The combustion of pinewood produces heat energy. The energy produced during combustion...a) The number of kilocalories produce in 1 s. The energy produced in one second by the power plant...a) Number of moles of CO2 are produced by the combustion of 4×1012 Kg of C8H18. The amount of CO2...a) The increase in the energy consumption between 1949 and 2012 and the average yearly increase...a) The total increase in emission of CO2 and also the percentage increase for the period between...Since the total power produced is 29.7 kW, the output power is as follows: The conversion of kW into...Given information: The initial volume of gasoline is 2.0 L, the pressure at sea level is 1.0 atm and...The boiling point of a molecule depends upon the intermolecular forces and the thermal energy....Chapter 13, Problem 1SCChapter 13, Problem 5EChapter 13, Problem 7EAcids are the substances that dissociate into hydronium ions in their aqueous solution. For example:...Chapter 14, Problem 14.1YTThe chemical equation for the respiration reaction is as follows: C6H12O6 + 6O2→6CO2+6H2O An...An oxidizing agent is a substance that tends to gain electrons in a redox reaction. It oxidizes the...The automobile battery is a lead-acid storage battery. The lead-acid storage battery is the type of...Chapter 14, Problem 31EChapter 14, Problem 38EPolymers are long chain organic compounds that are generated by many monomer units. Many monomers...Reason for the correct option: Fats are triglycerides which have three long hydrocarbon chains. This...Reason for correct option: Acetaminophen is one of the substitutes for aspirin. It reduces fever and...Reason for the correct answer: Proteins are very important for building a healthy body. Proteins...a) In Vons tortilla chips, Fats have a high calorific value, that is, up to 9 Cal/g. Carbohydrates...a) In Little Debbie choco-cakes, Fats have a high calorific value, that is, up to 9 Cal/g....Chapter A, Problem A1.1YT
More Editions of This Book
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Chemistry in Focus
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