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Moderate

Effects of IMF

APCHEM-JXXVIV

A mixture of water and ammonia is prepared by adding 1 mole of ammonia to 1 L of distilled water at STP. The picture below shows one molecule of each compound as a molecular-level view of the overall mixture.

Created for Albert.io. Copyright 2016. All rights reserved.

From the choices in the table below, which of the following combinations BEST describes the ammonia-water system?

Type of Mixture Type of force indicated By the dotted line Expected Volume of Mixture
a. Homogeneous Attractive Less than the sum of the individual volumes of ammonia and water before mixing.
b. Homogeneous Repulsive Greater than the sum of the individual volumes of ammonia and water before mixing.
c. Homogeneous Attractive Equal to the sum of the individual volumes of ammonia and water before mixing.
d. Heterogeneous Repulsive Equal to the sum of the individual volumes of ammonia and water before mixing.
A

A

B

B

C

C

D

D