Homework Answers
1. with the increase in electronegativity difference between attached atoms, polarity of bond increases. Electronegativity difference between O and H is greater than that of S and H.
OH bond is more polar than SH bond.
2. Hydrogen bonding strength increases with the increase in electronegativity difference between H and other electronegative atom . Hydrogen bonding is much weaker in thiols than in alcohols due to electronegativity difference.
3. Thiols are less soluble in water than alcohols because thiols do not possess hydrogen bonding.
4. Thiols have lower boiling points than alcohols because thiols do not possess hydrogen bonding where as alcohols possess hydrogen bonding.
Add Answer to:
-give reasone SH bond is less polar than OH bond. Hydrogen bonding is much weakerin thiols...
Which of the following explains the fact that there is extensive hydrogen bonding in alcohols but...
Which of the following explains the fact that there is extensive hydrogen bonding in alcohols but little if any in thiols? O Thiols are less soluble in water than alcohols. O Thiols have lower boiling points than the corresponding alcohols. O Sulfur is less electronegative than oxygen. All of the above explain the difference.
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more...
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more hydrogen bonds between water molecules than between alcohol molecules. There are less hydrogen bonds between water molecules than between alcohol molecules. CH, OH has the higher molecular mass than H,O. There are no hydrogen bonds between alcohol molecules while there are plenty of them between water molecules. O Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B H,O (100°C)...
1) Brief answers a) Explain why FeS is much less solute in water than Fe(OH)2 and Fe(OH)2 is much more soluble than Fe(O...
1) Brief answers a) Explain why FeS is much less solute in water than Fe(OH)2 and Fe(OH)2 is much more soluble than Fe(OH)3 b)will Cr3+react more strongly with Cl-or PR3. Why? 2) Brief answers a) Would you expect lead (Pb2+ soft to be found oxide in nature? b) Explain the following observation interns pf the HSAB theory: OH- + CH3HgS --> CH3HgOH +S2- Equilibrium displaced to the left.
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The...
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid - oriented in the most stable dimeric configuration with the other molecule of acid-and show the intermolecular hydrogen bonds. To indicate a hydrogen bond, draw a regular single bond between the atoms, then click on the "graded select" tool (the yellow highlighter) and click on the bond. A selected bond...
Ethers have... o higher than expected boiling point o low boiling points hydrogen bond towards eachother...
Ethers have... o higher than expected boiling point o low boiling points hydrogen bond towards eachother O none of these
(C) Water is less dense as a solid than as a liquid. (D) What has strong...
(C) Water is less dense as a solid than as a liquid. (D) What has strong hydrogen bonding interaction between molecules, which allow it to have a high heat evaporation. (E) All of the listed properties of water make life possible. Aspartic acid is a weak amino, its structure is shown below. 10(60) 1) Draw a possible titration curve (pH versus [OH^-]) for 1 M aspartic solution. Indicate the pK_as in the graph (pK_1 = 2.1, pK_2 = 3.9 and...
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...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the same molar mass. Which one has the higher boiling point? Choose one: A. The polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. B. They will have similar boiling points, since the dispersion forces depend upon molar mass. C. The nonpolar liquid will have the higher boiling point, since its molecules are more loosely held together. D. The nonpolar...
1.The addition of hydrogen to an organic compound or the loss of oxygen is called 1)...
1.The addition of hydrogen to an organic compound or the loss of oxygen is called 1) reduction. 2) oxidation. 3) dehydration. 4) halogenation. 5) hydration. Question 2 The carbonyl group does not have a dipole. 1) True 2) False Question 3 How many hydrogen atoms is the carbonyl group in a ketone bonded to? Question 3 options: 1) none 2) one 3) two 4) three 5) four Question 5 The increased boiling point of ketones compared to alkanes and ethers...
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. Several...
Carboxylic acids have higher than expected boiling points due to
dimeric associations involving hydrogen bonding. Several dimers of
3‑methylbutanoic acid (3‑methylbutyric acid) are shown where
proposed hydrogen bonding is represented by a dotted line.
Select the pair of compounds that show all of the expected
hydrogen bonds in a carboxylic acid dimer.
CH C HzCº. ---- H_CH, T 0 O= CH3 IM CH3 CH3 0 CH3 CH lyon НС 0- To CH3 IO-o CH3 Ó CH3 LCH C. Hzc OH...
Which of the following explains the fact that there is extensive hydrogen bonding in alcohols but little if any in thiols? O Thiols are less soluble in water than alcohols. O Thiols have lower boiling points than the corresponding alcohols. O Sulfur is less electronegative than oxygen. All of the above explain the difference.
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more hydrogen bonds between water molecules than between alcohol molecules. There are less hydrogen bonds between water molecules than between alcohol molecules. CH, OH has the higher molecular mass than H,O. There are no hydrogen bonds between alcohol molecules while there are plenty of them between water molecules. O Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B H,O (100°C)...
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid - oriented in the most stable dimeric configuration with the other molecule of acid-and show the intermolecular hydrogen bonds. To indicate a hydrogen bond, draw a regular single bond between the atoms, then click on the "graded select" tool (the yellow highlighter) and click on the bond. A selected bond...
Ethers have... o higher than expected boiling point o low boiling points hydrogen bond towards eachother O none of these
(C) Water is less dense as a solid than as a liquid. (D) What has strong hydrogen bonding interaction between molecules, which allow it to have a high heat evaporation. (E) All of the listed properties of water make life possible. Aspartic acid is a weak amino, its structure is shown below. 10(60) 1) Draw a possible titration curve (pH versus [OH^-]) for 1 M aspartic solution. Indicate the pK_as in the graph (pK_1 = 2.1, pK_2 = 3.9 and...
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...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the same molar mass. Which one has the higher boiling point? Choose one: A. The polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. B. They will have similar boiling points, since the dispersion forces depend upon molar mass. C. The nonpolar liquid will have the higher boiling point, since its molecules are more loosely held together. D. The nonpolar...
Carboxylic acids have higher than expected boiling points due to
dimeric associations involving hydrogen bonding. Several dimers of
3‑methylbutanoic acid (3‑methylbutyric acid) are shown where
proposed hydrogen bonding is represented by a dotted line.
Select the pair of compounds that show all of the expected
hydrogen bonds in a carboxylic acid dimer.
CH C HzCº. ---- H_CH, T 0 O= CH3 IM CH3 CH3 0 CH3 CH lyon НС 0- To CH3 IO-o CH3 Ó CH3 LCH C. Hzc OH...
Most questions answered within 3 hours.
-
Homework: Create a Class.... from scratch
Design , implement and test a class that can be...
asked 54 seconds from now -
A 3.0275 g sample of KHP (a primary standard, 1:1 acid:base,
FM=204.23 g/mol) is titrated with...
asked 3 minutes ago -
1. You need to make an aqueous solution of
0.165 M barium acetate for an
experiment...
asked 3 minutes ago -
Let X be a discrete random variable with the following PMF.
Px(k) =
1/4 for k...
asked 7 minutes ago -
ONLY use the information provided here on the
firm's Mission Statement. Written assessment must include
(1)...
asked 16 minutes ago -
2 Aliases
2a: Create an alias, numberfiles, which prints the number of
files in the current...
asked 24 minutes ago -
Hi so I'm currently using MIT App Inventor to create a app and I
wanted to...
asked 20 minutes ago -
Create a truth table for a 4-bit input where the output will be
a 1, if...
asked 22 minutes ago -
in a taxable acquisition, P corporation, using its own stock and
cash, purchases S corporation. The...
asked 24 minutes ago -
please don't use the p value method instead use the "5 steps of
hypothesis testing." Or...
asked 43 minutes ago -
It is said that Galileo discovered a basic principle of the
pendulum—that the period is independent...
asked 48 minutes ago -
The Cost of Equity and
Flotation Costs
Messman Manufacturing
will issue common stock to the public...
asked 55 minutes ago