Homework Answers
Liquid with strong intermolecular force of attraction has higher
surface tension. Liquid with strong force has higher
viscosity.
So, Liquid X has stronger intermolecular force of attraction so, it
has higher surface tension and viscosity than liquid Y.
Option C, is correct(X has a surface tension).
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Question 8 If liquid X has stronger intermolecular attractions than liquid Y, which of the following...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has a surface tension of 2.23 x 10 ^ -2, which would have the highest viscosity? A) pentane B) ethanol C) both have the same viscosity D) cannot be determined with the information provided 2.Which of the following is true for surface tension? l is a measure of the surface area exposed by the liquid ll increases with increasing intermolecular attraction forces lll decreases with...
1.Which attractions are stronger: intermolecular or intramolecular? 2.How many times stronger is a covalent bond compared...
1.Which attractions are stronger: intermolecular or intramolecular? 2.How many times stronger is a covalent bond compared to a dipole-dipole attraction? 3.What evidence is there that nonpolar molecules attract each other? 4.Which chemical in table 10.1 has the weakest intermolecular forces? Which has the strongest? How can you tell? 5.Suggest some ways that the dipoles in London forces are different from the dipoles in dipole-dipole attractions. 6.A) Which would have a lower boiling point: O2or F2? Explain. B) Which would have a lower boiling...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has a higher melting point than 12 Because NaCl is soluble in water, and I, is not. Because NaCl is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I, molecules. Because NaCl is a solid, and I, is a liquid. Because NaCl can form hydrogen bonds, and I cannot.
5 6 Liquid X is known to have a lower surface tension and lower viscosity than...
5 6 Liquid X is known to have a lower surface tension and lower viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome Identical wire loops are dipped into Liquid X and Liquid Y so that a film of liquid forms across the loops (like the bubble solution on a childs bubble blowing wand). The width of each loop is increased slowly and the forces...
Question 4 Which of the following is or are false? Surface tension of liquids increases as...
Question 4 Which of the following is or are false? Surface tension of liquids increases as temperature increases. Liquids are normally about 90-95% as dense as their corresponding solid Liquids are about 1000 times denser than gases Molecules with high intermolecular forces will have high surface tension The viscosity of a liquid is a measure of its resistance to flow.
Liquid own to have a higher vapor pressure and higher viscosity than Liquid Y. Use these...
Liquid own to have a higher vapor pressure and higher viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome Ox will be greater than ty Olx will be less than ty 25.0 mL each of Liquid X and Liquid Y are poured through a funnel, and the times tx and ty needed to pour each liquid through the funnel are measured. otx will be equal...
Which of the following compounds will only have London dispersion intermolecular attractions? {Hint: look for non-polar...
Which of the following compounds will only have London dispersion intermolecular attractions? {Hint: look for non-polar molecules). O CO2 O CH3F O CH3OH O OCI2 O Naci QUESTION 4 What is the strongest (most attractive) intermolecular force in CH3F? O hydrogen bonding O London dispersion forces O ion-dipole attraction O jonic bonding O dipole-dipole attraction
9 Explain the following in terms of intermolecular forces: a. NH3 has a higher boiing point...
9 Explain the following in terms of intermolecular forces: a. NH3 has a higher boiing point than PH3 b. Cl is gas, Br is a liquid and is sodat rom temperature c. Why vapor pressure for methanol, CH3OH is higher than water, H20 d. Polar compounds have higher surface tension than non polar e. Orange juice flows faster than pancake syrup f. diethyl ether (C2Hs)2O has higher vapor pressure than ethyl alcohol, C2Hs
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular forces and kinetic energies with respect to a solid and a liquid. Explain why molecules in a liquid are free to move past each other, while molecules in a solid are held in fixed positions. 2. Use your knowledge of intermolecular forces to provide an explanation for why the boiling point of 2-hexanol is higher than the boiling point of 2,3-dimethyl-2-butanol. Be sure to...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has a higher melting point than 12 Because NaCl is soluble in water, and I, is not. Because NaCl is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I, molecules. Because NaCl is a solid, and I, is a liquid. Because NaCl can form hydrogen bonds, and I cannot.
5 6 Liquid X is known to have a lower surface tension and lower viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome Identical wire loops are dipped into Liquid X and Liquid Y so that a film of liquid forms across the loops (like the bubble solution on a childs bubble blowing wand). The width of each loop is increased slowly and the forces...
Question 4 Which of the following is or are false? Surface tension of liquids increases as temperature increases. Liquids are normally about 90-95% as dense as their corresponding solid Liquids are about 1000 times denser than gases Molecules with high intermolecular forces will have high surface tension The viscosity of a liquid is a measure of its resistance to flow.
Liquid own to have a higher vapor pressure and higher viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome Ox will be greater than ty Olx will be less than ty 25.0 mL each of Liquid X and Liquid Y are poured through a funnel, and the times tx and ty needed to pour each liquid through the funnel are measured. otx will be equal...
Which of the following compounds will only have London dispersion intermolecular attractions? {Hint: look for non-polar molecules). O CO2 O CH3F O CH3OH O OCI2 O Naci QUESTION 4 What is the strongest (most attractive) intermolecular force in CH3F? O hydrogen bonding O London dispersion forces O ion-dipole attraction O jonic bonding O dipole-dipole attraction
9 Explain the following in terms of intermolecular forces: a. NH3 has a higher boiing point than PH3 b. Cl is gas, Br is a liquid and is sodat rom temperature c. Why vapor pressure for methanol, CH3OH is higher than water, H20 d. Polar compounds have higher surface tension than non polar e. Orange juice flows faster than pancake syrup f. diethyl ether (C2Hs)2O has higher vapor pressure than ethyl alcohol, C2Hs
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular forces and kinetic energies with respect to a solid and a liquid. Explain why molecules in a liquid are free to move past each other, while molecules in a solid are held in fixed positions. 2. Use your knowledge of intermolecular forces to provide an explanation for why the boiling point of 2-hexanol is higher than the boiling point of 2,3-dimethyl-2-butanol. Be sure to...
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