Question

When is a mixture not a solution?

   When is a mixture not a solution?

Introductory Chemistry Atoms First

Introductory Chemistry Atoms First

Steve Russo; Mike… 5th Edition

Chapter 1, Problem 22

Instant Answer

Solved by Expert Susan Hallstrom

02/20/2022

Step 1

A solution is defined as a homogeneous mixture. This means that the components that make up the mixture are uniformly distributed throughout the mixture. In other words, you cannot distinguish between the different components of the mixture. Show more…

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When is a mixture not a solution?

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Key Concepts

Mixture

A mixture is a combination of two or more substances that are physically intermingled but not chemically bonded. These substances can be separated by physical means because they retain their individual chemical identities, and the composition may vary from one part of the mixture to another.

Solution

A solution is a specific type of mixture in which one substance, known as the solute, is uniformly dispersed throughout another substance, known as the solvent. In a solution, the components are evenly distributed at the molecular level, resulting in a homogeneous mixture.

Homogeneity

Homogeneity refers to the uniformity of composition throughout a mixture. In a homogeneous mixture, the components are consistently distributed, meaning any sample taken from the mixture will have the same composition as any other, which is a defining characteristic of a solution.

Heterogeneous Mixture

A heterogeneous mixture is one in which the components are not uniformly distributed, resulting in visible differences in composition throughout the sample. Such mixtures are not considered solutions because they lack the uniformity required; examples include mixtures with distinct phases or particles that can settle out or be seen under magnification.

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