Consider the structures of dimethyl ether and ethanol. Which statements explain that the normal boiling point of dimethyl ether is 250 K, whereas the normal boiling point of ethanol is 351 K? I. dimethyl ether has a lower boiling point because it has hydrogen bonding as its predominant IMF II. more energy is needed to overcome the stronger IMF of ethanol III. ethanol has more atoms, so it has stronger London dispersion forces than dimethyl ether 0000 a b с d H H Dimethyl Ether I only I and II only Il only II and III only H H H H -0-H H Ethanol

Consider the structures of dimethyl ether and ethanol. Which statements explain that the normal boiling point of dimethyl ether is 250 K, whereas the normal boiling point of ethanol is 351 K? I. dimethyl ether has a lower boiling point because it has hydrogen bonding as its predominant IMF II. more energy is needed to overcome the stronger IMF of ethanol III. ethanol has more atoms, so it has stronger London dispersion forces than dimethyl ether 0000 a b с d H H Dimethyl Ether I only I and II only Il only II and III only H H H H -0-H H Ethanol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Use the phase diagram of Substance X below to find the boiling point of X when the pressure on the liquid is 3.7 atm. pressure (atm) 0- 8 solid liquid gas 100 temperature (K) 200 Note: your answer must be within 12.5 °C of the exact answer to be graded correct. ☐ °C G
H₂C b. C. H₂C H₂C CH3 CH CH₂ CH₂ Compound A MM: 136.228 g/mol H₂C CH3 CH₂ Compound B MM: 168.270 g/mol HC H₂C CH3 CH CH3 OH Compound C MM: 150.212 g/mol 1. Arrange the given compounds in terms of increasing boiling points. 2. An equal volume of COMPOUNDS A, B and C were stored in separate beakers which were left uncovered at room temperature. a. If the three liquids were allowed to stand for about 10 minutes, which of the following will have the least amount of liquid remaining in the container? What physical property is the basis of the answer? Among the three liquids, what is the most recommended ingredient of a perfume that will have the most lasting scent.
Predict which of the following liquids has greater surface tension: acetone (CH3COCH3) or cyclopropanol (C₂H5OH). Note: Consider drawing the Lewis Structures for each molecule to determine the intermolecular forces. Molecule 1 Acetone Molecule 2 Cyclopropanol Strongest Intermolecular Force Molecule 1 Exhibits (Choose one) Strongest Intermolecular Force Molecule 2 Exhibits ▼ (Choose one) Name of Molecule with Greater Surface Tension
The temperature on a sample of pure X held at 0.53 atm and – 168. °C is increased until the sample sublimes. The temperature is then held constant and the pressure is decreased by 0.35 atm. On the phase diagram below draw a path that shows this set of changes. pressure (atm) 3 دنا 2- 0. ایل 200 temperature (K) 400 x 5
Based on your knowledge of intermolecular forces, a container of liquid SOBr, has a higher vapor pressure than a container of liquid Br2. O True O False
Acetic acid has a normal boiling point of 118 ∘C and a ΔHvap of 23.4 kJ/mol. What is the vapor pressure (in mmHg) of acetic acid at 25 ∘C?
Which of the following pure substances has the highest normal boiling point? O H2O CF4 O CsF CaF2 OKF
The pressure above a pure sample of solid Substance X at -142. °C is raised. At what pressure will the sample melt? Use the phase diagram of X below to find your answer. بالا pressure (atm) 0 0. atm solid liquid 200 temperature (K) Note: your answer must be within 0.125 atm of the exact answer to be graded correct. gas X 400
Use numbers to order the substances by decreasing strength of intermolecular forces. Let #1 be the substance with the STRONGEST intermolecular forces and #3 be the substance with the WEAKEST intermolecular forces. Propane, C3H8 Ethyl Methyl Ether, CH3CH2OCH3 Propylamine, C2H5CH2NH2 H. H. .H H. H. H. H, H H.
Given the formula and boiling point of each compound, which compound would you expect to have the highest vapor pressure at room temperature? water, H2O - 100C methanol, CHOH - 64.96C ethanol, CH CH OH - 78.5C diethyl ether, CH3CH2OCH2CH3 - 34.5C ethylene glycol, HOCH,CH2OH - 198C OOOOO
Which of these statements about hydrogen bonds is not true? Individual hydrogen bonds in liquid water exist for less than a second. Hydrogen bonds do not account for the anomalously high boiling point of water. O In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules. Individual hydrogen bonds are much weaker than covalent bonds. The strength of a hydrogen bond depends on the linearity of the three atoms involved in the bond.
Suppose 1 g of water at 10 °C was heated and there are no heat lost in the surroundings. How much heat is needed to covert this amount of water to steam at 110 °C?