Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Question
Chapter 9, Problem 22QRT
Interpretation Introduction
Interpretation:
An explanation about the higher boiling point of 1-propanol than ethyl methyl ether has to be given.
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You have samples of four compounds: dimethyl ether, methane, difluoromethane, and ethanol. You measure the boiling points of the compounds as -128 °C, -52 °C, -25 °C, and 78 °C, but then lose the labels for each sample. Make the following predictions Which compound boils at -128 °C?
Would you expect butanone, CH;COCH;CH3 where the CO is a double bond, to have a higher or
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Propanol, CH3CH2CH2OH, has a molar mass of 60.1 g/mol and a boiling point of 97.4°C. Use
intermolecular forces to explain why propanol has a higher boiling point than butane or
acetone.
The compounds 1-propanol, CH₃CH₂CH₂OH, and ethyl methyl ether, CH₃CH₂OCH₃ have the same chemical formula. Based on the chemical structure shown, what intermolecular forces are present in a molecule of ethyl methyl ether?
The compounds 1-propanol, CH₃CH₂CH₂OH, and ethyl methyl ether, CH₃CH₂OCH₃ have the same chemical formula. Which one of the two molecules will have a higher freezing point?
A) 1-propanol
B) ethyl methyl ether
The compounds 1-propanol, CH₃CH₂CH₂OH, and ethyl methyl ether, CH₃CH₂OCH₃ have the same chemical formula. Which one of the two molecules will have a lower enthalpy of vaporization?
Chapter 9 Solutions
Chemistry: The Molecular Science
Ch. 9.1 - Prob. 9.1CECh. 9.2 - Prob. 9.2CECh. 9.2 - Prob. 9.1PSPCh. 9.2 - What mass (g) of ethanol, CH3CH2OH(), can be...Ch. 9.3 - Prob. 9.3CECh. 9.3 - Prob. 9.4CECh. 9.3 - Prob. 9.3PSPCh. 9.4 - What types of solids are these substances? (a) The...Ch. 9.4 - Prob. 9.5PSPCh. 9.4 - Prob. 9.5E
Ch. 9.4 - Prob. 9.6CECh. 9.4 - Sublimation is an excellent means of purification...Ch. 9.4 - Prob. 9.6PSPCh. 9.4 - Prob. 9.8ECh. 9.4 - Prob. 9.9ECh. 9.5 - Predict which liquid—glycerol, HOCH2CH(OH)CH2OH,...Ch. 9.5 - Prob. 9.11CECh. 9.6 - Crystalline polonium has a primitive cubic unit...Ch. 9.6 - Calculate the unit cell edge length of copper...Ch. 9.6 - Vanadium metal crystallizes in a body-centered...Ch. 9.6 - Prob. 9.13ECh. 9.6 - Prob. 9.14ECh. 9.6 - Prob. 9.9PSPCh. 9.9 - Prob. 9.10PSPCh. 9.9 - The graph below is obtained when a liquid metal is...Ch. 9.9 - Look in Appendix D and compare the electron...Ch. 9.11 - Prob. 9.11PSPCh. 9 - Prob. ISPCh. 9 - Prob. IISPCh. 9 - Prob. IIISPCh. 9 - Prob. 1QRTCh. 9 - Prob. 2QRTCh. 9 - Prob. 3QRTCh. 9 - Prob. 4QRTCh. 9 - Prob. 5QRTCh. 9 - Prob. 6QRTCh. 9 - Which processes are endothermic? (a) Condensation...Ch. 9 - Prob. 8QRTCh. 9 - Prob. 9QRTCh. 9 - Prob. 10QRTCh. 9 - Prob. 11QRTCh. 9 - Prob. 12QRTCh. 9 - Prob. 13QRTCh. 9 - After exercising on a hot summer day and working...Ch. 9 - Prob. 15QRTCh. 9 - The molar vaporization enthalpy of methanol is...Ch. 9 - Prob. 17QRTCh. 9 - Mercury is highly toxic. Although it is a liquid...Ch. 9 - Prob. 19QRTCh. 9 - Prob. 20QRTCh. 9 - Prob. 21QRTCh. 9 - Prob. 22QRTCh. 9 - Prob. 23QRTCh. 9 - Prob. 24QRTCh. 9 - Prob. 25QRTCh. 9 - Prob. 26QRTCh. 9 - A liquid has a vapH of 38.7 kJ/mol and a boiling...Ch. 9 - Prob. 28QRTCh. 9 - The vapor pressure of ethanol, C2H5OH, at 50.0 C...Ch. 9 - Prob. 30QRTCh. 9 - Prob. 31QRTCh. 9 - Prob. 32QRTCh. 9 - Which would you expect to have the higher fusion...Ch. 9 - Prob. 34QRTCh. 9 - Prob. 35QRTCh. 9 - Prob. 36QRTCh. 9 - Prob. 37QRTCh. 9 - Prob. 38QRTCh. 9 - Prob. 39QRTCh. 9 - Prob. 40QRTCh. 9 - Prob. 41QRTCh. 9 - Prob. 42QRTCh. 9 - Prob. 43QRTCh. 9 - Prob. 44QRTCh. 9 - At the critical point for carbon dioxide, the...Ch. 9 - Prob. 46QRTCh. 9 - Prob. 47QRTCh. 9 - On the basis of the description given, classify...Ch. 9 - On the basis of the description given, classify...Ch. 9 - Prob. 50QRTCh. 9 - Prob. 51QRTCh. 9 - Prob. 52QRTCh. 9 - Prob. 53QRTCh. 9 - Prob. 54QRTCh. 9 - Prob. 55QRTCh. 9 - Prob. 56QRTCh. 9 - Prob. 57QRTCh. 9 - Prob. 58QRTCh. 9 - Prob. 59QRTCh. 9 - Prob. 60QRTCh. 9 - Prob. 61QRTCh. 9 - The ionic radii of Cs+ and Cl are 181 and 167 pm,...Ch. 9 - Prob. 63QRTCh. 9 - Prob. 64QRTCh. 9 - Prob. 65QRTCh. 9 - Tungsten has a body-centered cubic unit cell and...Ch. 9 - Prob. 67QRTCh. 9 - Prob. 68QRTCh. 9 - Prob. 69QRTCh. 9 - Prob. 70QRTCh. 9 - Prob. 71QRTCh. 9 - Prob. 72QRTCh. 9 - Prob. 73QRTCh. 9 - Prob. 74QRTCh. 9 - Prob. 75QRTCh. 9 - Prob. 76QRTCh. 9 - Prob. 77QRTCh. 9 - Prob. 78QRTCh. 9 - Prob. 79QRTCh. 9 - Prob. 80QRTCh. 9 - Which substance has the greatest electrical...Ch. 9 - Prob. 82QRTCh. 9 - Prob. 83QRTCh. 9 - Prob. 84QRTCh. 9 - Prob. 85QRTCh. 9 - Prob. 86QRTCh. 9 - What makes a glass different from a crystalline...Ch. 9 - Prob. 88QRTCh. 9 - Prob. 89QRTCh. 9 - Prob. 90QRTCh. 9 - Will a closed container of water at 70 C or an...Ch. 9 - Prob. 92QRTCh. 9 - Prob. 95QRTCh. 9 - Prob. 96QRTCh. 9 - Prob. 97QRTCh. 9 - Prob. 98QRTCh. 9 - Prob. 99QRTCh. 9 - Prob. 100QRTCh. 9 - Prob. 101QRTCh. 9 - Prob. 102QRTCh. 9 - Prob. 103QRTCh. 9 - Consider this information regarding two compounds....Ch. 9 - Prob. 105QRTCh. 9 - Prob. 106QRTCh. 9 - If you get boiling water at 100 C on your skin, it...Ch. 9 - Prob. 108QRTCh. 9 - The normal boiling point of SO2 is 263.1 K and...Ch. 9 - Butane is a gas at room temperature; however, if...Ch. 9 - Prob. 111QRTCh. 9 - Examine the nanoscale diagrams and the phase...Ch. 9 - Consider the phase diagram and heating-curve...Ch. 9 - Prob. 115QRTCh. 9 - Prob. 116QRTCh. 9 - The phase diagram for water over a relative narrow...Ch. 9 - Prob. 118QRTCh. 9 - Prob. 119QRTCh. 9 - Prob. 120QRTCh. 9 - Prob. 121QRTCh. 9 - Prob. 122QRTCh. 9 - Titanium metal crystallizes in a body-centered...Ch. 9 - Prob. 9.ACPCh. 9 - Prob. 9.BCPCh. 9 - Prob. 9.CCP
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Similar questions
- 3. Consider the following table. List three substances as having the strongest intermolecular forces. Explain your reason. Formula CH4 HOH C₂H6 CH₂OH C3H8 CH₂CH₂OH C4H10 CH3CH₂CH₂OH Name methane water ethane methanol propane ethanol butane 1-propanol Molar Mass Boiling Point (°C) -164 100 -89 65 -42 78 16 18 30 32 44 46 58 60 97arrow_forwardDimethyl ether and ethanol both have the molecular formula C2H6O. Which would you predict have the higher boiling point? Why?arrow_forwardEthanol and dimethyl ether have the same molecular formula C2H6O. Ethanol is liquid at room teperature while dimethyl ether is gas. How is this possible? Explain.arrow_forward
- Which of the compounds, ethanol, C2H6O, or methanol, CH3OH, should have the higher boiling point? Why? How would the boiling point change if the atmospheric pressure increased or decreased? What is the effect of small amount of impurity on the boiling point of an organic compound? List five physical properties of organic compounds that are often measured by organic chemists.arrow_forwardWhy do ethanol and dimethyl ether have such different proper-ties even though they have the same chemical formula?arrow_forwardWhy does styrene have a higher boiling point, 145 °C, than isopropanol, 83 °C? Explain your answer by indicating the types and relative strengths of intermolecular forces present in each compound (see the line structures given below). HO styrene dipole moment = 0.13 D isopropanol dipole moment = 1.66 Darrow_forward
- Write a balanced chemical reaction for the incomplete combustion of pentane, C5H12C5H12 in oxygen gas to form carbon monoxide gas as one of the products.arrow_forwardPropane, C3H8, is a hydrocarbon that is commonly used as a fuel.(a) Write a balanced equation for the complete combustion of propane gas.(b) Calculate the volume of air at 25 °C and 1.00 atmosphere that is needed to completely combust 25.0 grams of propane. Assume that air is 21.0 percent O2 by volume. (Hint:use the information that 1.00 L of air at 25 °C and 1.00 atm contains 0.275 g of O2 per liter.)(c) The heat of combustion of propane is −2,219.2 kJ/mol. Calculate the heat of formation, ΔH°f of propane given that ΔH°f of H2O(l) = −285.8 kJ/mol and ΔH°f of CO2(g) = −393.5 kJ/mol. (d) Assuming that all of the heat released in burning 25.0 grams of propane is transferred to 4.00 kilograms of water, calculate the increase in temperature of the water.arrow_forwardDraw Lewis structures and condensed structural formulas for the four alcohols with the molecular formula C4H10O. Classify each alcohol as primary, secondary, or tertiary. (Hint: First consider the connectivity of the four carbon atoms; they can be bonded either four in a chain or three in a chain with the fourth carbon as a branch on the middle carbon. Then consider the points at which the iOH group can be bonded to each carbon chain.)arrow_forward
- Alcohols A, B, and C all have the composition C4H10O. Molecules of alcohol A contain a branched carbon chain and can be oxidized to an aldehyde; molecules of alcohol B contain a linear carbon chain and can be oxidizedto a ketone; and molecules of alcohol C can be oxidized to neither an aldehyde nor a ketone. Write the Lewis structures of these molecules.arrow_forwardEthanol, C₂H60, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of 2-methylheptane, C8H18, releases 1.306 × 10³ kcal of energy. How much energy is released during the complete combustion of 405 grams of 2- methylheptane? kcal Assuming the same efficiency, would 405 grams of ethanol provide more, less, or the same amount of energy as 405 grams of 2-methylheptane? more less the same amount Retry Entire Group 9 more group attempts remainingarrow_forwardArrange the following compounds in decreasing order of boiling point. Highest Boiling Point 1 Ethanoic acid (carboxylic acid) 2 Ethanamide (amide) 3 propan-1-ol (alcohol) 4 n-butane (alkane) Lowest Boiling Pointarrow_forward
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