Quality in Analytical Chemistry
6 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is a key factor in ensuring quality in analytical chemistry?

  • Accuracy (correct)
  • Precision
  • Sensitivity
  • Selectivity

    • What is the difference between precision and accuracy in analytical chemistry?

  • Precision and accuracy are not important in analytical chemistry
  • Precision refers to the closeness of a set of measurements to each other, while accuracy refers to the closeness of a measurement to the true value (correct)
  • Precision and accuracy are the same thing in analytical chemistry
  • Precision refers to the closeness of a measurement to the true value, while accuracy refers to the closeness of a set of measurements to each other

    • What is selectivity in analytical chemistry?

  • The ability of an analytical method to provide accurate results
  • The ability of an analytical method to measure a specific analyte in the presence of other substances (correct)
  • The ability of an analytical method to provide consistent and reproducible results
  • The ability of an analytical method to measure a wide range of analytes

    • Which one of these is the correct relationship between mole fraction and molality?

    <p>Mole fraction is a ratio of the number of moles of solute to the total number of moles in the solution, while molality is a ratio of the number of moles of solute to the mass of the solvent in kilograms.</p> Signup and view all the answers

    Which one of these is the correct definition of mole fraction?

    <p>Mole fraction is a ratio of the number of moles of a component to the total number of moles in the solution.</p> Signup and view all the answers

    Which one of these is the correct definition of molality?

    <p>Molality is a ratio of the number of moles of solute to the mass of the solvent in kilograms.</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser