Account for the Observation That Ethyl Alcohol $\mathrm { C } _ { 2 }$

question 34

Multiple Choice

Account for the observation that ethyl alcohol, $\mathrm { C } _ { 2 }$ $\mathrm { H } _ { 5 }$ OH,dissolves readily in water but dimethyl ether,C $\mathrm { H } _ { 3 }$ OC $\mathrm { H } _ { 3 }$ ,which has the same number and kinds of atoms,does not.

• A)The hydrogens on the dimethyl ether surround the molecule,shielding the inner atoms from interacting with the water.
• B)Because the carbons arrange themselves in a straight line,the ethanol can interact more easily with more water molecules,thus increasing its solubility.
• C)The high electronegativity of the carbon-oxygen-carbon bond on dimethyl ether creates a strong dipole charge on the ends of the molecule,making it highly soluble in water.
• D)Because dimethyl ether lacks an -OH group,it is significantly less polar than is ethyl alcohol and is not readily soluble in water.

Understand the prevalence of human papillomavirus (HPV) among sexually active individuals in the United States.

Recognize risk factors for human papillomavirus (HPV) infection and related health issues like cervical cancer.

Differentiate between low-risk (nononcogenic) and high-risk types of HPV.

Know the recommendations for routine vaccination for HPV.

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