Understanding Mass Spectrometry

What is the primary purpose of a mass spectrometer?

• To analyze sound waves

• To calculate gravitational force

• To determine atomic masses of isotopes

• To measure the speed of light

In the ionization process, what happens to chlorine gas?

• It gains a neutron

• It loses an electron

• It loses a proton

• It gains an electron

What is the charge of a chlorine ion after ionization?

• 1.6 x 10^-19 coulombs

• 1.6 x 10^-18 coulombs

• 3.2 x 10^-19 coulombs

• 0 coulombs

What is the role of the velocity selector in a mass spectrometer?

• To increase the mass of ions

• To select ions based on their velocity

• To change the charge of ions

• To decrease the speed of ions

What is the magnetic field strength used in the velocity selector?

• 0.4 teslas

• 50 milli teslas

• 100 teslas

• 10 milli teslas

What is the calculated velocity of ions passing through the velocity selector?

• 80,000 meters per second

• 60,000 meters per second

• 40,000 meters per second

• 20,000 meters per second

Which force is responsible for deflecting ions in the velocity selector?

• Gravitational force

• Electric force

• Nuclear force

• Frictional force

How are ions separated in the mass spectrometer's detector?

• By their speed

• By their color

• By their charge

• By their mass

What are the two naturally occurring isotopes of chlorine identified in the video?

• Chlorine-36 and Chlorine-39

• Chlorine-34 and Chlorine-36

• Chlorine-35 and Chlorine-37

• Chlorine-33 and Chlorine-38

How is the mass number of an isotope determined?

• By adding the number of protons and neutrons

• By adding the number of electrons and protons

• By dividing the number of protons by electrons

• By subtracting the number of neutrons from protons