In mass spectrometer, detector or collector measures the:
Correct answer: C. Relative abundances of isotopes
- A. Masses of isotopes
- B. Percentages of isotopes
- C. Relative abundances of isotopes
- D. Mass numbers of isotopes
Explanation
Mass spectrometers measure the relative abundances of isotopes of an element. Mass spectrometers are analytical instruments used to measure the mass-to-charge ratio of ions. One of the key applications of mass spectrometry is determining the relative abundances of isotopes in a sample. The basic principle involves ionizing a sample, then separating and detecting ions based on their mass-to-charge ratio. Since isotopes of an element have different masses, the mass spectrometer can distinguish between them, allowing scientists to determine the relative abundance of each isotope in a given sample.
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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