a. Account for this fact: Although methanol (CH3OH) (bp, 64.7 °C) has a higher molar mass than water (bp, 100 °C), the alcohol has a lower boiling point. O Methanol has non-polar carbon chain. O Methanol is an organic compound and water is an inorganic compound. Owater has two 0-H bonds and methanol has only one. O Methanol has more hydrogen atoms per molecule.

a. Account for this fact: Although methanol (CH3OH) (bp, 64.7 °C) has a higher molar mass than water (bp, 100 °C), the alcohol has a lower boiling point. O Methanol has non-polar carbon chain. O Methanol is an organic compound and water is an inorganic compound. Owater has two 0-H bonds and methanol has only one. O Methanol has more hydrogen atoms per molecule.

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

how do you know there should also be NaCl as a product? Why wouldnt it be NaCl2?
The bond dissociation energy, in kJ, to break 4 bond(s) in 1 mole of CH4 molecules is Single H C N Bond H 432 411 346 N 386 305 167 459 358 201 142 C=C 602 C=O 799 C=C 835 C=O 1072 Multiple Bonds C=N 615 O=0 494 C=N 887 N=N 942 **All values in kJ/mol**
True/False 4.184 joules equal 1 kilocalorie carbon atom can form 4 bonds 31. 32. 33. 34. molar mass of phosphoric acid is 95 grams/mole heat determines the direction of temperature potential energy is the capacity to do work the product of an acid-base reaction is carbon dioxide and water 97% of the worlds water supply is nonpotable climate change plays an important role in the timing of the water cycle all aqueous solutions are homogeneous molarity is defined as grams per milliliter 35. 36. 37. 38. 39. 40.
Which compound would have the lowest boiling point? I OV ||| O IV OII OI IV OH II OH V SOH Ш -OH
Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. substance A B C D H - H H H I C chemical symbol, chemical formula or Lewis structure — - H I C - Z : N 1 C 1 H - H H H - - Ar 0. H 1 CIO Cr · Η .. - H H 1 H ▪ H boiling point ✓ (Choose one) 1 (highest) 2 3 4 (lowest) (Choose one) V (Choose one) ✓ (Choose one) v
Fructose, C6H1206(S), consists of 5 C-C single bonds, 7 C-O bonds, 7 C-H bonds, and 5 O-H bonds with average bond energies of 348 kJ/mol, 360 kJ/mol, 412 kJ/mol, and 463 kJ/mol respectively. The bond energy for C=O is 799 kJ/mol and O=O is 498 kJ/mol. The molar mass of fructose is 180.12 g/mol. Estimate the change in enthalpy if 2.56 g of fructose undergoes complete combustion at standard temperature and pressure.
Which of the following pure substances is capable of forming H BONDS? Ho 4+4 H-C-C- H H a) b) 5-H H H I .. H-C-0-C-H I H c) I H H-C-H н | н INI H-C H T H d) C-H | H
Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on.
For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. name acetic acid ammonia compound dibromomethane. formula or Lewis structure H :O: | || H-C-C-0-H 1 H ΝΗ, CH₂Br₂ Between molecules of the compound? O yes O no 10000 O yes O no hydrogen-bonding force O yes O no Between molecules of the compound and molecules of water? O yes O no O yes O no O yes O no X 3
The dipole moments (dp) and boiling points (b.p.) of the following four molecular compounds are given below: CH3Cl (dp = 1.9; bp = -23.1 oC)) CH2Cl2 (dp =1.6; bp = 39.75 oC) CHCl3 (dp =1.03; bp = 61.5 oC) CCl4 (dp = 0.00 bp = 76.7 oC) Q: What types of intermolecular forces exist in each compound?
For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. name formic acid compound dibromomethane acetic acid formula or Lewis structure :0: || H-C-O-H CH₂Br₂ H :0: | || H-C-C-O-H H Between molecules of the compound? 00 00 yes no yes no yes hydrogen-bonding force no Between molecules of the compound and molecules of water? 00 00 yes no yes no yes no X
London Dispersion Forces How are non-polar regions of electron clouds identified? Use two CH3C(O)OH molecules to demonstrate London dispersion forces.