Interpretation : A given measurement always be reported to the correct number of significant figures to be explained.
Concept Introduction : The known digits plus the last, estimated digit make up the significant figures in a measurement.
Answer to Problem 14LC
The calculated results frequently depend on the number of significant figures used in the calculation.
Measurement results must be reported to the appropriate number of significant figures because calculated values must be accurate and precise.
Explanation of Solution
The known digits plus the last, estimated digit make up the significant figures in a measurement.
The calculated results frequently depend on the number of significant figures used in the calculation.
Measurement results must be reported to the appropriate number of significant figures because calculated values must be accurate and precise.
There is a set of rules to detect the digits in a significant measured value. The rules are as follows:
- It is assumed that every nonzero digit in a given measurement is significant.
- Zeros that come in between nonzero numbers are significant.
- The leftmost zeros that exist before nonzero digits are not significant.
- A zero following a decimal point and to the right of it are both always significant.
- Zeros that are to the left of an understandable decimal point at the rightmost end of measurement are not significant.
- In some cases, a number may have an infinite number of significant figures.
Chapter 3 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- Please correct answer and don't used hand raitingarrow_forward14. Draw all of the products expected for the following reaction. Circle the products expected to predominate when the reaction is heated to 40 °C. EXPLAIN your choice. (12 points) HBr ? Br -11arrow_forwardPlease correct answer and don't used hand raitingarrow_forward
- Please correct answer and don't used hand raitingarrow_forwardDraw and show the full mechanism of how the molecule ((1E, 3E, 5E)-1-methoxyhepta-1,3,5-triene) is built using substitution and elimination reactions. You can start with an alkane of any carbon length with any number of leaving groups attached or with a alkoxide of any carbon length (conjugate base of an alcohol). Show each step and and explanation for each reaction. Also include why the reagents and solvents were picked and what other products can be expected.arrow_forwardDon't USE AIarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples 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 EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY