Homework Answers
1)The correct answer is option d.This is because, water has highest hydrogen bonding. This happens due to the largest electronegativity difference between the central atom and the hydrogen in water than in others.
2)The correct answer is option b. This is because, He2 has a bond order of zero,wjhich means no bond exists between two helium molecules. Therefore, it cannot exist. On the contrary, the other two molecular ions have a bond order of half and therefore, although unstable, they will still exist.
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Which of the following compounds has the highest boiling point? 34.6°C 78.3°C 100°C 800 760 Normal...
en e Text 34.6°C 78.3°C Area 100°C ent Sharing Normal boiling point Diethyl ether tings Vapor...
en e Text 34.6°C 78.3°C Area 100°C ent Sharing Normal boiling point Diethyl ether tings Vapor pressure (tore) Ethyl alcohol (ethanol) Dols Ethylene glycol 20 80 100 40 60 Temperature (°C) Based on the figure above, the boiling point of water under an external pressure of 0.0658 atm is °C. O O O O O
Based on the figure above, the boiling point of diethyl ether under an external pressure of...
Based on the figure above, the boiling point of diethyl ether
under an external pressure of 0.590 atm is ________°C.
a 20
b 0
c 60
d 30
34.6°C 78.3 °C 100 °C 800 760 Normal boiling point 600 Vapor pressure (tor) Diethyl ether Water 400 Ethyl alcohol (ethanol) 200 Ethylene glycol 0 0 20 80 100 40 60 Temperature (°C)
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S0...
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S00 760 Normal boiling point 600 Diethyl ether Ethyl alcohol (ethanol) Water 400 200 Ethylene glycol 0 0 20 40 60 100 80 Temperature (C) Based on the figure above, the boiling point of water under an external pressure of0.493 atm is C. 80 a. 70 b. 60 90 c. d. Which one of the following has a definite shape and volume?...
A) TRUE B) FALSE U. Heats of vaporization are greater than heats of fusion 800 34.6°C...
A) TRUE B) FALSE U. Heats of vaporization are greater than heats of fusion 800 34.6°C 760 783C 10 Normal boiling 600 Diethyl/ point Ethyl alcohol (ethanol) Water Ethylene glycol 20 40 60 80 100 Temperature (00 11. Based on the figure above, the boiling point of diethyl ether under an external pressure of 0.605 atm is A40 B) 10 C) 30 D) 20 E) 0 12. What is the predominant intermolecular foree in HCN? A) dipole-dipole attraction B) ion-dipole...
Given the following boiling point data, which one of the liquids would you expect to have...
Given the following boiling point data, which one of the liquids would you expect to have the HIGHEST vapor pressure at room temperature? a) water, H2O; 100°C b) methanol, CH3OH; 64.96°C c) ethanol, CH3CH2OH; 78.5°C d) diethyl ether, CH3CH2-O-CH2CH3; 34.5°C e) ethylene glycol, HO-CH2-CH2-OH; 198°C
You are given the following boiling point data, Which one of the liquids would you expect...
You are given the following boiling point data, Which one of the liquids would you expect to have the highest vapor pressure at room temperature! a. ethanol, CH3CH2OH 78.5°C b. water, H20 100°C Oc. diethyl ether, CH3CH2 O CH2CH3 34.5°C Od. ethylene glycol, HO CH2 CH2 OH 198°C Oe methanol, CH3OH 64.96°C
Question 16 (1 point) Which substance below has the weakest intermolecular forces? BY2, AHvap=29.2 kJ/mol A2X,...
Question 16 (1 point) Which substance below has the weakest intermolecular forces? BY2, AHvap=29.2 kJ/mol A2X, AHvap= 41.2 kJ/mol C3X2, AHvap= 33.2 kJ/mol DX2, AHvap= 25.2 kJ/mol EY3, AHvap= 20.5 kJ/mol Question 3 (1 point) The spheres below represent atoms of Si, Ge,C, and Sn (not necessarily in that order). r=110 pm - 140 pm T-75 pm (a) r=120 pm (c) Which one of these spheres represents an atom of Si? sphere (c) sphere (b) sphere (a) sphere (d) KYC...
figure 1 Figure 2 Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
Assign the correct boiling point and vapor pressures to the following compounds: (-24°C, 78°C, 97°C, 197°C)...
Assign the correct boiling point and vapor pressures to the following compounds: (-24°C, 78°C, 97°C, 197°C) (0.5 kPa, 5.95 kPa, 1.99 kPa, 6.3 kPa) Анн Носс-он ннн HH.. H. HHH ннн но, с °H H Ethylene glycol H OH H H H Ethanol HHH Propanol CÇ-H HHH Methoxymethane
14) The vapor pressure of ethylene glycol at 100 °C and its normal boiling point (to...
14) The vapor pressure of ethylene glycol at 100 °C and its normal boiling point (to a good approximation) are: A) 150 torr and 130 C, respectively B) 65 torr and 210 C, respectively C) 200 torr and 300 C, respectively D) Otorr and 700 C, respectively 15) The higher normal boiling point of ethylene glycol relative to the other solvents can be explained mainly based on: A) Higher dispersion forces B) Low dispersion forces C) Extensive hydrogen bonding D)...
en e Text 34.6°C 78.3°C Area 100°C ent Sharing Normal boiling point Diethyl ether tings Vapor pressure (tore) Ethyl alcohol (ethanol) Dols Ethylene glycol 20 80 100 40 60 Temperature (°C) Based on the figure above, the boiling point of water under an external pressure of 0.0658 atm is °C. O O O O O
Based on the figure above, the boiling point of diethyl ether
under an external pressure of 0.590 atm is ________°C.
a 20
b 0
c 60
d 30
34.6°C 78.3 °C 100 °C 800 760 Normal boiling point 600 Vapor pressure (tor) Diethyl ether Water 400 Ethyl alcohol (ethanol) 200 Ethylene glycol 0 0 20 80 100 40 60 Temperature (°C)
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S00 760 Normal boiling point 600 Diethyl ether Ethyl alcohol (ethanol) Water 400 200 Ethylene glycol 0 0 20 40 60 100 80 Temperature (C) Based on the figure above, the boiling point of water under an external pressure of0.493 atm is C. 80 a. 70 b. 60 90 c. d. Which one of the following has a definite shape and volume?...
A) TRUE B) FALSE U. Heats of vaporization are greater than heats of fusion 800 34.6°C 760 783C 10 Normal boiling 600 Diethyl/ point Ethyl alcohol (ethanol) Water Ethylene glycol 20 40 60 80 100 Temperature (00 11. Based on the figure above, the boiling point of diethyl ether under an external pressure of 0.605 atm is A40 B) 10 C) 30 D) 20 E) 0 12. What is the predominant intermolecular foree in HCN? A) dipole-dipole attraction B) ion-dipole...
You are given the following boiling point data, Which one of the liquids would you expect to have the highest vapor pressure at room temperature! a. ethanol, CH3CH2OH 78.5°C b. water, H20 100°C Oc. diethyl ether, CH3CH2 O CH2CH3 34.5°C Od. ethylene glycol, HO CH2 CH2 OH 198°C Oe methanol, CH3OH 64.96°C
Question 16 (1 point) Which substance below has the weakest intermolecular forces? BY2, AHvap=29.2 kJ/mol A2X, AHvap= 41.2 kJ/mol C3X2, AHvap= 33.2 kJ/mol DX2, AHvap= 25.2 kJ/mol EY3, AHvap= 20.5 kJ/mol Question 3 (1 point) The spheres below represent atoms of Si, Ge,C, and Sn (not necessarily in that order). r=110 pm - 140 pm T-75 pm (a) r=120 pm (c) Which one of these spheres represents an atom of Si? sphere (c) sphere (b) sphere (a) sphere (d) KYC...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
Assign the correct boiling point and vapor pressures to the following compounds: (-24°C, 78°C, 97°C, 197°C) (0.5 kPa, 5.95 kPa, 1.99 kPa, 6.3 kPa) Анн Носс-он ннн HH.. H. HHH ннн но, с °H H Ethylene glycol H OH H H H Ethanol HHH Propanol CÇ-H HHH Methoxymethane
14) The vapor pressure of ethylene glycol at 100 °C and its normal boiling point (to a good approximation) are: A) 150 torr and 130 C, respectively B) 65 torr and 210 C, respectively C) 200 torr and 300 C, respectively D) Otorr and 700 C, respectively 15) The higher normal boiling point of ethylene glycol relative to the other solvents can be explained mainly based on: A) Higher dispersion forces B) Low dispersion forces C) Extensive hydrogen bonding D)...
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