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(Solved): Consider a solution of acetonitrile (molar mass \( 41 \mathrm{~g} \) ) in water (molar mass \( 18 ...



Consider a solution of acetonitrile (molar mass \( 41 \mathrm{~g} \) ) in water (molar mass \( 18 \mathrm{~g} \) ). Which sta

Consider a solution of acetonitrile (molar mass \( 41 \mathrm{~g} \) ) in water (molar mass \( 18 \mathrm{~g} \) ). Which statement about the kinetic energy of these molecules is correct? (Hint: Consider that the typical speed of a molecule decreases with increasing mass, but that the kinetic energy increases with mass.) The lighter molecule (water) has a larger kinetic energy on average. The heavier molecule (acetonitrile) has a larger kinetic energy on average. Both molecules have the same kinetic energy on average.


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Answer Acetonitrile has more molar mass than water.
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