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(a)
Interpretation:
Whether compound B has higher molar mass is justified by boiling point data or is erroneous or can be true or false has to be determined.
Concept Introduction:
Dipole-dipole interactions come into play when partial charges of different dipoles interact with each other. Higher polarity between molecules, more will be dipole-dipole interactions between them and vice-versa. Boiling point is governed by strength of dipole-dipole interactions that is measured in terms of dipole moments. Boiling point is directly related to dipole moment of molecules. More dipole moment of molecules, higher will be boiling point and vice-versa.
(b)
Interpretation:
Whether compound A is more viscous is justified by boiling point data or is erroneous or can be true or false has to be determined.
Concept Introduction:
Viscosity is characteristic property of liquid particles that allows resistance to their flow. In other words, it represents opposition to flow of liquids.
(c)
Interpretation:
Whether compound B has stronger intermolecular forces is justified by boiling point data or is erroneous or can be true or false has to be determined.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Whether compound B has higher surface tension is justified by boiling point data or is erroneous or can be true or false has to be determined.
Concept Introduction:
Attractive forces that act on molecules present on liquid surface in order to pull them into bulk of liquid is known as surface tension. Due to this surface tension, molecules tend to occupy as minimum surface area as possible.
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Chapter 3 Solutions
Chemical Principles: The Quest for Insight
- I need help working this problem out step by step, I was trying to use my example from the txt book but all I know how to do is set it up. I need to be shown step by step as I am a visual learner. Please help me.arrow_forwardDon't used hand raitingarrow_forwardDon't used Ai solution and don't used hand raitingarrow_forward
- & Calculate the molar enthalpy of combustion (A combH) of 1.80 g of pyruvic acid (CH3COCOOH; 88.1 g mol-1) at 37 °C when they are combusted in a calorimeter at constant volume with a calorimeter constant = 1.62 kJ °C-1 and the temperature rose by 1.55 °C. Given: R = 8.314 J mol −1 °C-1 and the combustion reaction: AN C3H4O3 + 2.502(g) → 3CO2(g) + 2H2O(l)arrow_forwardAn unknown salt, AB, has the following precipitation reaction:A+(aq) + B-(aq) ⇌ AB(s) the K value for this reaction is 4.50 x10-6. Draw a model that represents what will happen when 1.00 L each of 1.00 M solution of A+(aq) and 1.00M solution of B-(aq) are combined.arrow_forward5. a) Use the rules in Example 4.4 (p. 99) and calculate sizes of octahedral and tetrahedral cavities in titanium and in zirconium. Use values for atomic radii given in Fig. 9.1 (p.291). (3 points) b) Consider the formation of carbides (MC) of these metals. Which metal is able to accommodate carbon atoms better, and which cavities (octahedral or tetrahedral) would be better suited to accommodate C atoms into metal's lattice? (4 points)arrow_forward
- 2. Read paragraph 3.4 in your textbook ("Chiral Molecules"), and explain if Cobalt(ethylenediamine) 33+ shown in previous problem is a chiral species. If yes, draw projections of both enantiomers as mirror images, analogous to mirror projections of hands (below). Mirror (4 points)arrow_forward3. Borane (BH3) belongs to D3h point group. Consider the vibrational (stretching) modes possible for B-H bonds under D3h symmetry. Using the methods we used in class, construct the reducible representation I, and break it down into irreducible representations using the character table provided. Sketch those modes, indicate whether they are IR-active. (6 points) D3h E 2C3 3C2 σh 283 30% A₁' 1 1 1 1 1 1 x² + y², z² 1 -1 1 1 -1 R₂ E' 2 0 2 0 (x, y) (x² - y², xy) " A₁" 1 1 -1 A2" 1 -1 -1 1 Z E" 2 -1 0 -2 1 0 (Ry, Ry) (xz, yz)arrow_forward1. List all the symmetry elements, and assign the compounds to proper point groups: a) HCIBrC-BrCIH Cl Br H (2 points) H Br b) Pentacarbonylmanganese(I)bromide Br OEC-Mn-CEO 00- c) Phenazine (aromatic molecule, with delocalized bonding) 1 d) Cobalt(ethylenediamine)33+ (just the cation) 3+ H₂N H₂ .NH2 (CI)3 NH2 H2 H₂N. (2 points) (2 points) (2 points)arrow_forward
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- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
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