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7. Lactic acid, also known as a-hydroxy propionic acid, is an a-hydroxy acid (AHA) found in some skin care products. What is its structure? OH O A) CH,-CH-ċ-H OH B) CH,CH,CH-OH OH O C) CHy OH -CH-C- HO- D) CH,CH, HO-CH,CH-C- H- E) OH 8. Which statement best explains why propanoic acid (M.W. = 74) boils at a much higher temperature than hexane (M.W. = 86)? A) Lower molecular weights tend to boil at higher temperatures. Propanoic acid has weaker intermolecular forces than hexane. Propanoic acid molecules can hydrogen bond with other propanoic molecules but hexane is non-polar and cannot hydrogen bond. D) B) Chains with fewer carbon atoms tend to boil at higher temperatures than ones with more carbon atoms. None of the choices are correct. E) wility: Investigate DFocus

7. Lactic acid, also known as a-hydroxy propionic acid, is an a-hydroxy acid (AHA) found in some skin care products. What is its structure? OH O A) CH,-CH-ċ-H OH B) CH,CH,CH-OH OH O C) CHy OH -CH-C- HO- D) CH,CH, HO-CH,CH-C- H- E) OH 8. Which statement best explains why propanoic acid (M.W. = 74) boils at a much higher temperature than hexane (M.W. = 86)? A) Lower molecular weights tend to boil at higher temperatures. Propanoic acid has weaker intermolecular forces than hexane. Propanoic acid molecules can hydrogen bond with other propanoic molecules but hexane is non-polar and cannot hydrogen bond. D) B) Chains with fewer carbon atoms tend to boil at higher temperatures than ones with more carbon atoms. None of the choices are correct. E) wility: Investigate DFocus

Chemistry
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...
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Questions 7 and 8
A Select Paragraph Styles Editing Voice Sensitivity 7. Lactic acid, also known as a-hydroxy propionic acid, is an a-hydroxy acid (AHA) found in some skin care products. What is its structure? OH A) CH3-CH-C-H OH B) CH;CH,CH-OH OH C) CH,-CH-C -OH OH I D) CH,CH, -C-OH HO-CH,CH- H E) OH 8. Which statement best explains why propanoic acid (M.W. = 74) boils at a much higher temperature than hexane (M.W. = 86)? A) Lower molecular weights tend to at higher temperatures. B) Propanoic acid has weaker intermolecular forces than hexane. C) Propanoic acid molecules can hydrogen bond with other propanoic molecules but hexane is non-polar and cannot hydrogen bond. D) Chains with fewer carbon atoms tend to boil at higher temperatures than ones with more carbon atoms. None of the choices are correct. E) Accessibility: Investigate OFocus prt sc home end Insert F11 F12 96 & 3 7 8. P D G K
Transcribed Image Text:A Select Paragraph Styles Editing Voice Sensitivity 7. Lactic acid, also known as a-hydroxy propionic acid, is an a-hydroxy acid (AHA) found in some skin care products. What is its structure? OH A) CH3-CH-C-H OH B) CH;CH,CH-OH OH C) CH,-CH-C -OH OH I D) CH,CH, -C-OH HO-CH,CH- H E) OH 8. Which statement best explains why propanoic acid (M.W. = 74) boils at a much higher temperature than hexane (M.W. = 86)? A) Lower molecular weights tend to at higher temperatures. B) Propanoic acid has weaker intermolecular forces than hexane. C) Propanoic acid molecules can hydrogen bond with other propanoic molecules but hexane is non-polar and cannot hydrogen bond. D) Chains with fewer carbon atoms tend to boil at higher temperatures than ones with more carbon atoms. None of the choices are correct. E) Accessibility: Investigate OFocus prt sc home end Insert F11 F12 96 & 3 7 8. P D G K
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