Chemistry: Avogadro's Hypothesis and Gas Laws
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Questions and Answers

What is the primary purpose of Mass Spec in measuring the abundance of isotopes in a sample?

To provide a high level of precision and accuracy when measuring the abundance of isotopes in a sample to calculate relative atomic mass of elements.

What is the first stage of the Mass Spec process?

Ionization: Atoms are converted to ions by knocking off electrons to convert to positive ions.

How are ions accelerated in the Mass Spec process?

Ions are accelerated to give them the same kinetic energy.

What happens to ions when they are deflected by the magnetic field in Mass Spec?

<p>The level of deflection is dependent on the mass of the ion; lighter ions are deflected more.</p> Signup and view all the answers

What is the purpose of Atomic Spec?

<p>To measure the concentration of metal ions in a sample.</p> Signup and view all the answers

What is the principle behind Absorption Spec?

<p>The amount of electromagnetic radiation absorbed by an element is dependent on the frequency of the original light and the concentration of elements in a sample.</p> Signup and view all the answers

What happens to the valence electrons in Absorption Spec?

<p>They are excited and move to higher energy levels, but then return to the ground state.</p> Signup and view all the answers

What is the result of ions arriving at the electrical detector in Mass Spec?

<p>The more ions that arrive, the greater the current.</p> Signup and view all the answers

What is the purpose of Mass Spec in calculating the relative atomic mass of elements?

<p>To provide a high level of precision and accuracy when measuring the abundance of isotopes in a sample.</p> Signup and view all the answers

What is the relationship between the frequency of the original light and the concentration of elements in a sample in Atomic Spec?

<p>The amount of electromagnetic radiation absorbed by an element is dependent on the frequency of the original light and the concentration of elements in a sample.</p> Signup and view all the answers

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