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Concept explainers
(a)
Interpretation:
The steric number of
Concept Introduction:
The molecular structure is a 3-dimensional representation of bond pairs around the central atom. It is also known as molecular geometry. Electron geometry is a 3-dimensional representation of bond pairs and lone pair around the central atom.
Shape corresponds to electron geometry and geometry corresponds to molecular geometry or structure.
(b)
Interpretation:
The steric number of
Concept Introduction:
The molecular structure is a 3-dimensional representation of bond pairs around the central atom. It is also known as molecular geometry. Electron geometry is a 3-dimensional representation of bond pairs and lone pair around the central atom.
Shape corresponds to electron geometry and geometry corresponds to molecular geometry or structure.
(c)
Interpretation:
The steric number of
Concept Introduction:
The molecular structure is a 3-dimensional representation of bond pairs around the central atom. It is also known as molecular geometry. Electron geometry is a 3-dimensional representation of bond pairs and lone pair around the central atom.
Shape corresponds to electron geometry and geometry corresponds to molecular geometry or structure.
(d)
Interpretation:
The steric number of
Concept Introduction:
The molecular structure is a 3-dimensional representation of bond pairs around the central atom. It is also known as molecular geometry. Electron geometry is a 3-dimensional representation of bond pairs and lone pair around the central atom.
Shape corresponds to electron geometry and geometry corresponds to molecular geometry or structure.
(e)
Interpretation:
The steric number of
Concept Introduction:
The molecular structure is a 3-dimensional representation of bond pairs around the central atom. It is also known as molecular geometry. Electron geometry is a 3-dimensional representation of bond pairs and lone pair around the central atom.
Shape corresponds to electron geometry and geometry corresponds to molecular geometry or structure.
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Chapter 3 Solutions
EBK PRINCIPLES OF MODERN CHEMISTRY
- 19. :O: || :0-N- O: Which of the following statements, if true, would support the claim that the NO3 ion, represented above, has three resonance structures? (A) The NO3 ion is not a polar species. (B) The oxygen-to-nitrogen-to-oxygen bond angles are 90°. (C) One of the bonds in NO3 is longer than the other two. (D) One of the bonds in NO3¯ is shorter than the other two.arrow_forwardAnswer the following questions that relate to the chemistry of nitrogen. (a) Two nitrogen atoms combine to form a nitrogen molecule, as represented by the following equation. 2 N(g) ® N2(g) Using the table of average bond energies below, determine the enthalpy change, AH, for the reaction. Average Bond Energy (k) mol-1) Bond N-N 160 N=N 420 N°N 950 (b) The reaction between nitrogen and hydrogen to form ammonia is represented below. N2(g) + 3 H2(g)® 2 NH3(g) AH° = -92.2 kJ Predict the sign of the standard entropy change, AS', for the reaction. Justify your answer. (C) The value of AG° for the reaction represented in part (b) is negative at low temperatures but positive at high temperatures. Explain.arrow_forwardThe Lewis structure of H2CS (a) Is the molecule polar or nonpolar? (b) What is the hybridization of the carbon atom? (c) What is the geometric shape of the molecule?arrow_forward
- Which of these statements about resonance is true?(a) When you draw resonance structures, it is permissibleto alter the way atoms are connected.(b) The nitrate ion has one long N¬O bond and two shortN¬O bonds.(c) “Resonance” refers to the idea that molecules areresonating rapidly between different bonding patterns.(d) The cyanide ion has only one dominant resonancestructure.(e) All of the above are true.arrow_forwardWhich of the following would you expect to have the highest bond energy (strength)? (a) 02 (b) Cl2 N₂ F2 3 (d)arrow_forwardHCI VIO 4. Draw the Lewis structures for the following: (a) K (b) Cl (d) Ca2 (c) O2 nolar and which U he T0IIOWINO would you preoarrow_forward
- How many nonbonding pairs (or lone-pairs) of electrons are found on the central atom in the Lewis structure of XeF2 molecule? (A) 0 (B) 1 (C) 2 (D) 3arrow_forwardWhich of the following molecules or ions contain polar bonds?(a) O3(b) S8(c) O22−(d) NO3−(e) CO2(f) H2S(g) BH4−arrow_forwardDraw the Lewis structure for (a) NO+ ion, (b) C2H4.arrow_forward
- Two substances with empirical formula HNO are hyponi-trous acid ( μ=62.04 g /mol) and nitroxyl (μ=31.02 g/mol).(a) What is the molecular formula of each species?(b) For each species, draw the Lewis structure having the lowestformal charges. (Hint:Hyponitrous acid has an N=N bond.)(c) Predict the shape around the N atoms of each species.(d) When hyponitrous acid loses two protons, it forms the hy-ponitrite ion. Draw cisand transforms of this ion.arrow_forwardWhat are the electron-pair geometry and the molecular structure of each of the following molecules or ions?(a) ClF5(b) ClO2−(c) TeCl42−(d) PCl3(e) SeF4(f) PH2−arrow_forwardAn important starting material for the manufacture ofpolyphosphazenes is the cyclic molecule (NPCl₂)₃. The mol-ecule has a symmetrical six-membered ring of alternating N and P atoms, with the Cl atoms bonded to the P atoms. The nitrogen-phosphorus bond length is significantly less than that expectedfor an N−P single bond.(a) Draw a likely Lewis structure for the molecule.(b) How many lone pairs of electrons do the ring atoms have?(c) What is the order of the nitrogen-phosphorus bond?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
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