Concept explainers
(a)
Interpretation:
The number 25,401 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.
(b)
Interpretation:
The number 1,248,486 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.
(c)
Interpretation:
The number 0.001265982 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.
(d)
Interpretation:
The number 0.123456 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.
(e)
Interpretation:
The number 195.371 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.
(f)
Interpretation:
The number 196.814 needs to be rounded off up to 3 significant figures.
Concept Introduction:
The rules to determine the significant figures in a number are as follows:
- Digits which are non-zero are always significant.
- Between two significant digits, if there is any non-zero digit present then it is significant.
- The trailing zeroes or final zero within the decimal portion are only significant.

Want to see the full answer?
Check out a sample textbook solution
Chapter 1 Solutions
ALEKS 360 ACCESS CARD F/GEN. ORG.CHEM
- Please help me answer the following questions. My answers weren't good enough. Need to know whyy the following chemicals were not used in this experiment related to the melting points and kf values. For lab notebook not a graded assignments.arrow_forwardDraw the arrow pushing reaction mechanism. DO NOT ANSWER IF YOU WONT DRAW IT. Do not use chat gpt.arrow_forwardComplete the following esterification reaction by drawing the structural formula of the product formed. HOH HO i catalyst catalyst OH HO (product has rum flavor) (product has orange flavor)arrow_forward
- The statements in the tables below are about two different chemical equilibria. The symbols have their usual meaning, for example AG stands for the standard Gibbs free energy of reaction and K stands for the equilibrium constant. In each table, there may be one statement that is faise because it contradicts the other three statements. If you find a false statement, check the box next to t Otherwise, check the "no false statements" box under the table. statement false? AG"1 no false statements: statement false? AG-0 0 InK-0 0 K-1 0 AH-TAS no false statements 2arrow_forwardComplete the following esterification reactions by drawing the line formulas of the carboxylic acid and alcohol required to form the ester shown. catalyst catalyst catalyst apricot fragrancearrow_forwardShow the saponification products of the following ester: You don't need to draw in the Na+ cation. catalyst, A catalyst, A catalyst, Aarrow_forward
- What would happen if the carboxylic acid and alcohol groups were on the same molecule? In essence, the molecule reacts with itself. Draw the structure of the products formed in this manner using the reactants below. If two functional groups interact with one another on the same molecule, this is called an “intramolecular" (within one) rather than "intermolecular" (between two or more) attack. OH OH catalyst OH HO catalyst catalyst HO OHarrow_forwardQ3: Write in the starting alkyl bromide used to form the following products. Include any reactants, reagents, and solvents over the reaction arrow. If more than one step is required, denote separate steps by using 1), 2), 3), etc. H OH racemic OH OH 5 racemicarrow_forwardDraw the Lewis structure of the SO3-O(CH3)2 complex shown in the bottom right of slide 2in lecture 3-3 (“Me” means a CH3 group) – include all valence electron pairs and formal charges.From this structure, should the complex be a stable molecule? Explain.arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning




