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Which term describes a solution having a very well-known concentration of solute?

a. Molar solution
b. Dilute solution
c. Concentrated solution
d. Saturated solution

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Final answer:

The term for a solution with a well-known concentration of solute is a 'molar solution.' Unlike the qualitative terms dilute or concentrate, molarity provides a precise measure of solute concentration.

Step-by-step explanation:

The term that describes a solution with a very well-known concentration of solute is a molar solution. A molar solution has a specific concentration expressed as moles of solute per liter of solution (molarity). This is unlike a dilute solution, which has a relatively small amount of solute; or a concentrated solution, with a relatively large amount of solute. A saturated solution, on the other hand, has a concentration of solute that has reached the point where no more solute can dissolve at a given temperature.

Concentration is a key concept in chemistry that quantifies the exact amount of solute in a given amount of solvent. Dilute and concentrated are qualitative terms that describe the relative amounts of solutes, while molarity provides a quantitative measure. For precision in experiments and solutions preparation, knowing the molarity is essential.

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