AP Chemistry Mass Spec

What element has the following mass spec data?

• Rubidium

• Chlorine

• Bromine

• Mercury

Calculate the average atomic mass from the mass spec.

• 85.56 amu

• 85.75 amu

• 86.44 amu

• 86.74

Tags

NGSS.HS-PS1-7

What element has the following mass spec data?

• Sulfur

• Nitrogen

• Oxygen

• Carbon

Tags

NGSS.HS-PS1-1

What element has the following mass spec data?

• Thulium

• Copper

• Europium

• Zinc

Element X has 2 isotopes. X-125 and X-126. For every 100 atoms of X, 30 of them have a mass of 125.0 amu and 70 have a mass of 126.0 amu. What is the average atomic mass of X?

• 125.3 amu

• 125.7 amu

• 126.3 amu

• 126.7 amu

How many isotopes are shown in this mass spec?

• 1

• 2

• 6

• 7

What element has the following mass spec data?

• Carbon

• Lithium

• Uranium

• Oxygen

Based on the mass spec data, which Iron isotope is the most abundant?

• Fe-54

• Fe-56

• Fe-57

• Fe-58

Sulfur has 4 stable isotopes and an atomic mass of 32.06 amu. What is the most reasonable inference you can make about its isotopes?

• The most common isotope of sulfur has a mass of exactly 32.06 amu.

• Approximately 6% of sulfur atoms have a mass of 32 amu.

• All of sulfur's isotopes have a mass between 32 amu and 33 amu.

• The most common isotope of sulfur is S-32.

What element has the following mass spec data?

• Tin

• Tellurium

• Chromium

• Polonium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2