(a)
Interpretation:
Whether
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
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Whether
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Whether
Concept Introduction:
Refer to part (a).
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Chemical Principles: The Quest for Insight
- A 0.580 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H,SO, (aq) – MSO, (aq) + H, (g) A volume of 225 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. The vapor pressure of water at 25 °C is 23.8 Torr. Calculate the molar mass of the metal. molar mass: 63.1189 g/molarrow_forwardNeon and HF have approximately the same molecular masses.(a) Explain why the boiling points of Neon and HF differ.(b) Compare the change in the boiling points of Ne, Ar, Kr, and Xe with the change of the boiling points of HF, HCl, HBr, and HI, and explain the difference between the changes with increasing atomic or molecular mass.arrow_forwardNeon and HF have approximately the same molecular mass. (a) Explain why the boiling point of Neon and HF differ. (b) Compare the change in the boiling points of Ne, Ar, Kr, and Xe with the change of the boiling points of HF, HCl, HBr, and HI, and explain the difference between the changes with increasing atomic or molecular mass.arrow_forward
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- Examining the crystal structure of CsCl (Caesium Chloride), the Cs+ions form the 8 corners of a cube and the Cl−ion is a the center of the cube. From first-principles calculation, it was determined that the lattice constant of CsCl is 4.209 ̊A. (a) Calculate in detail the electrostatic force exerted by all the Cs+ atoms to the Cl−atom; (b) Assuming that 1 Cs+atom is missing in crystal structure (crystal is said to have a defect), calculate in detail what will be the net electrostatic force on the Cl−ion due to the remaining Cs+ions.arrow_forward(a) How do the viscosity and surface tension of liquids change as intermolecular forces become stronger? (b) How do the viscosity and surface tension of liquids change as temperature increases? Accounts for these trendsarrow_forwardAt standard temperature and pressure, the molar volumesof Cl2 and NH3 gases are 22.06 and 22.40 L, respectively.(a) Given the different molecular weights, dipole moments,and molecular shapes, why are their molar volumes nearlythe same? (b) On cooling to 160 K, both substances formcrystalline solids. Do you expect the molar volumes todecrease or increase on cooling the gases to 160 K? (c) Thedensities of crystalline Cl2 and NH3 at 160 K are 2.02 and0.84 g>cm3, respectively. Calculate their molar volumes.(d) Are the molar volumes in the solid state as similar asthey are in the gaseous state? Explain. (e) Would you expectthe molar volumes in the liquid state to be closer to thosein the solid or gaseous state?arrow_forward
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- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning