A Solution Is Prepared by Dissolving 16 $\mathrm { C } _ { 6 }$

question 79

Multiple Choice

A solution is prepared by dissolving 16.4 g of benzene ( $\mathrm { C } _ { 6 }$ $\mathrm { H } _ { 6 }$ ) in 282 g of carbon tetrachloride $\left( \mathrm { CCl } _ { 4 } \right)$ The concentration of benzene in this solution is ________ molal.The molar masses of $\mathrm { C } _ { 6 } \mathrm { H } _ { 6 }$ and $\mathrm { CCl } _ { 4 }$ are $78.1 \mathrm {~g} \mathrm {~mol} ^ { - 1 }$ and $154 \mathrm {~g} \mathrm {~mol} ^ { - 1 }$ respectively.

• A)0.704
• B)5.50
• C)0.0550
• D)7.45 × 10^-4
• E)0.745

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Definitions:

Nasal Meatuses

Passages within the nasal cavity formed by the curvature of the nasal conchae, through which air passes and is filtered.

Nasal Conchae

Curved bony projections in the nasal cavity that help to humidify, warm, and filter air as it is inhaled.

Paranasal Sinuses

Air-filled spaces within the bones of the skull and face, connected to the nasal cavity and involved in the production of mucus and voice resonance.

Paranasal Sinuses

Air-filled spaces in the bones of the skull that are connected to the nasal cavity.