Concept explainers
Videos
(a)
Interpretation: The answer in the significant notation to be written.
Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.
(a)
Answer to Problem 27A
Two significant digits is
Explanation of Solution
In final result number of significant figures is the same as that in the measurement with smallest number of significant figures.
The given number is
Third digit (8) is greater than 5. Above digit is increased by 1. Thus two significant digits
(b)
Interpretation: The answer to the correct number of significant digits to be calculated.
Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.
(b)
Answer to Problem 27A
Three significant digits is
Explanation of Solution
In final result number of significant figures is the same as that in the measurement with smallest number of significant figures.
The given number is
Fourth digit (8) is greater than 5. Above digit is increased by 1. Thus three significant digits
(c)
Interpretation: The answer to the correct number of significant digits to be calculated.
Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.
(c)
Answer to Problem 27A
The four significant digits is
Explanation of Solution
In final result number of significant figures is the same as that in the measurement with smallest number of significant figures.
The given number is
(d)
Interpretation: The answer to the correct number of significant digits to be calculated.
Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.
(d)
Answer to Problem 27A
The three significant digit is 6.83.
Explanation of Solution
In final result number of significant figures is the same as that in the measurement with smallest number of significant figures.
The given number is 6.8264. Fourth digit (6) is greater than 5. Above digit is increased by 1. Thus number become 6.83
Chapter 5 Solutions
World of Chemistry
- Highlight the chirality (or stereogenic) center(s) in the given compound. A compound may have one or more stereogenic centers. OH OH OH OH OH OHarrow_forwardUsing wedge-and-dash bonds, modify the bonds on the chiral carbon in the molecule below so the molecule has R stereochemical configuration. NH H Br X टेarrow_forwardProvide photos of models of the following molecules. (Include a key for identification of the atoms) 1,2-dichloropropane 2,3,3-trimethylhexane 2-bromo-3-methybutanearrow_forward
- Please draw the structure in the box that is consistent with all the spectral data and alphabetically label all of the equivalent protons in the structure (Ha, Hb, Hc....) in order to assign all the proton NMR peaks. The integrations are computer generated and approximate the number of equivalent protons. Molecular formula: C13H1802 14 13 12 11 10 11 (ppm) Structure with assigned H peaks 2.08 3.13arrow_forwardA 0.10 M solution of acetic acid (CH3COOH, Ka = 1.8 x 10^-5) is titrated with a 0.0250 M solution of magnesium hydroxide (Mg(OH)2). If 10.0 mL of the acid solution is titrated with 10.0 mL of the base solution, what is the pH of the resulting solution?arrow_forwardFirefly luciferin exhibits three rings. Identify which of the rings are aromatic. Identify which lone pairs are involved in establishing aromaticity. The lone pairs are labeled A-D below.arrow_forward
- A 0.10 M solution of acetic acid (CH3COOH, Ka = 1.8 x 10^-5) is titrated with a 0.0250 M solution of magnesium hydroxide (Mg(OH)2). If 10.0 mL of the acid solution is titrated with 10.0 mL of the base solution, what is the pH of the resulting solution?arrow_forwardGiven a complex reaction with rate equation v = k1[A] + k2[A]2, what is the overall reaction order?arrow_forwardPlease draw the structure in the box that is consistent with all the spectral data and alphabetically label all of the equivalent protons in the structure (Ha, Hb, Hc....) in order to assign all the proton NMR peaks. The integrations are computer generated and approximate the number of equivalent protons. Molecular formula: C13H1802 14 13 12 11 10 11 (ppm) Structure with assigned H peaks 2.08 3.13arrow_forward
- CHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the steady-state approximation method. Explain what it consists of.arrow_forwardCHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the limiting or determining step approximation method. Explain what it consists of.arrow_forwardCHEMICAL KINETICS. Indicate the approximation methods for solving the rate equation.arrow_forward
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY