Chemical Concentrations quiz #1 Flashcards
Chemical Concentrations quiz #1
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What is the difference between molarity and molality when describing the concentration of a solution?
Molarity is defined as moles of solute per liter of solution, while molality is defined as moles of solute per kilogram of solvent. In a solution, how are the terms solute, solvent, and solution defined?
The solute is the smaller portion that is dissolved, the solvent is the larger portion that does the dissolving, and the solution is the homogeneous mixture formed when the solute is dissolved in the solvent. Why is understanding units like molarity and molality important in analytical chemistry?
Understanding these units is important because they are used to express the concentration of solutions, which affects the physical properties and behavior of solutions in analytical chemistry. What is the definition of molarity in terms of solute and solution?
Molarity is defined as moles of solute divided by liters of solution. How is molality different from molarity when expressing concentration?
Molality is defined as moles of solute divided by kilograms of solvent, while molarity uses liters of solution. In a solution, what roles do the solute and solvent play?
The solute is the smaller portion that is dissolved, and the solvent is the larger portion that does the dissolving. What is a solution in the context of analytical chemistry?
A solution is a homogeneous mixture where the solute is dissolved in the solvent to an appreciable amount. Why is it important to understand units like molarity and molality in analytical chemistry?
These units are important because they express the concentration of solutions, which affects their physical properties and behavior. What do molarity and molality have in common when calculating concentration?
Both molarity and molality use moles of solute in their calculations. Why is it useful to recall general chemistry concepts when studying analytical chemistry?
General chemistry concepts, such as solution concentration, are reintroduced and essential for solving analytical chemistry problems.
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