A Solution Is Prepared by Mixing 45 $\circ$ C? Substance

A)3

question 120

Multiple Choice

A solution is prepared by mixing 45.68 of carbon disulfide (CS₂,76.13 g/mol) with 16.42 g of acetonitrile (CH₃CN,41.06 g/mol) .What is the vapor pressure of the solution at 25 ^$\circ$ C? Substance

• A)3.57 \(\times\) 10² torr
• B)2.50 \(\times\) 10² torr
• C)2.14 \(\times\) 10² torr
• D)1.97 \(\times\) 10² torr
• E)8.95 \(\times\) 10¹ torr

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Definitions:

Trans-1,2-Dimethylcyclohexane

A cyclohexane molecule with methyl groups located on opposite sides (trans) at the 1 and 2 positions on the ring.

Stable Conformation

A molecular form in which the compound has the lowest possible energy level, thus being more energetically favorable and less reactive.

Chair Conformations

A term used in organic chemistry to describe the most stable form of a cyclohexane ring, resembling a chair, due to minimal steric strain.

Axial Methyl

A methyl group attached to a cyclohexane ring in a position parallel to the axis of the ring, leading to higher steric strain compared to equatorial positions.