Analytical Chemistry Solutions Quiz
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Questions and Answers

In the context of concentration, what are the majority and minority components referred to as?

  • Solution and solvent
  • Solvent and solutes (correct)
  • Solute and solution
  • Solute and solvent

    • What is the definition of a solution in analytical chemistry?

  • A mixture of two or more components with different physical states
  • A mixture with uneven distribution of components
  • A mixture of two or more components with visible boundaries
  • A homogenous mixture of two or more components (correct)

    • What is the definition of molarity in analytical chemistry?

  • $M = \frac{\text{grams of solute}}{\text{liters of solution}}$
  • $M = \frac{\text{moles of solute}}{\text{grams of solvent}}$
  • $M = \frac{\text{moles of solvent}}{\text{liters of solution}}$
  • $M = \frac{\text{moles of solute}}{\text{liters of solution}}$ (correct)

    • What is the unit for expressing concentration?

    <p>Relative amount of solute per unit volume or unit mass of solution</p> Signup and view all the answers

    What is the molarity of the AgNO3 solution prepared by dissolving 1.26 g AgNO3 in a 250 ml volumetric flask?

    <p>$0.0297 M$</p> Signup and view all the answers

    Study Notes

    Concentration in Analytical Chemistry

    • In the context of concentration, the majority component is referred to as the solvent, while the minority component is referred to as the solute.

    Definition of a Solution

    • A solution is a homogeneous mixture composed of two or more substances, where one substance (the solute) is dissolved in another substance (the solvent).

    Definition of Molarity

    • Molarity is the number of moles of solute per liter of solution, expressed in units of moles per liter (mol/L) or molarity (M).

    Unit for Expressing Concentration

    • Concentration is typically expressed in units of molarity (M), which represents the number of moles of solute per liter of solution.

    Example Calculation: Molarity of AgNO3 Solution

    • The molarity of the AgNO3 solution prepared by dissolving 1.26 g AgNO3 in a 250 ml volumetric flask can be calculated as follows:
      • First, calculate the number of moles of AgNO3: moles = mass / molar mass = 1.26 g / 169.87 g/mol = 0.0074 mol
      • Then, calculate the molarity: molarity = moles / liter = 0.0074 mol / 0.25 L = 0.0296 M or approximately 0.03 M

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    Description

    Test your knowledge of analytical chemistry solutions with this quiz. Learn about the components of solutions, concentration units, and more.

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