Concept explainers
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(a)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(b)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(c)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(d)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
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Chapter PSS Solutions
EBK INTRODUCTORY CHEMISTRY
- Identify any polar covalent bonds in epichlorohydrin with S+ and 8- symbols in the appropriate locations. Choose the correct answer below. Η H's+ 6Η Η Η Η Η Ηδ Η Ο Ο HH +Η Η +Η Η Η -8+ CIarrow_forwardH H:O::::H H H HH H::O:D:D:H HH HH H:O:D:D:H .. HH H:O:D:D:H H H Select the correct Lewis dot structure for the following compound: CH3CH2OHarrow_forwardRank the following compounds in order of decreasing boiling point. ннннн -С-С-Н . н-с- ННННН H ΗΤΗ НННН TTTĪ н-с-с-с-с-о-н НННН НН C' Н н-с-с-с-с-н НН || Ш НННН H-C-C-C-C-N-H ННННН IVarrow_forward
- Rank the following compounds in order of decreasing dipole moment. |>||>||| ||>|||>| |>|||>|| |||>||>| O ||>>||| H F H F H c=c || H c=c F F IIIarrow_forwardchoose the description that best describes the geometry for the following charged species ch3-arrow_forwardWhy isn't the ketone in this compound converted to an acetal or hemiacetal by the alcohol and acid?arrow_forward
- What is the approximate bond angle around the nitrogen atom? HNH H Harrow_forwardOH 1. NaOCH2CH3 Q 2. CH3CH2Br (1 equiv) H3O+ Select to Draw 1. NaOCH2 CH3 2. CH3Br (1 equiv) heat Select to Edit Select to Drawarrow_forwardComplete and balance the following half-reaction in acidic solution. Be sure to include the proper phases for all species within the reaction. S₂O₃²⁻(aq) → S₄O₆²⁻(aq)arrow_forward
- Q Select to Edit NH3 (CH3)2CHCI (1 equiv) AICI 3 Select to Draw cat. H2SO4 SO3 (1 equiv) HO SOCl2 pyridine Select to Edit >arrow_forwardComplete and balance the following half-reaction in basic solution. Be sure to include the proper phases for all species within the reaction. Zn(s) → Zn(OH)₄²⁻(aq)arrow_forwardb. ὋΗ CH3CH2OH H2SO4arrow_forward
Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
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