Mass Spectrum Module-2
Made by: Aseel, Anas, Tala, Khaled
What is a Mass Spectrum?
A mass spectrum is a graphical representation that displays ions based on their mass-to-charge ratio and their respective intensities, which is used to identify and quantify chemical compounds in a sample by revealing both the mass and relative abundance of ions.
Question-8A:
The most common isotope for Magnesium is Magnesium-24, since it's the closest number to its molar mass, and its charge is +1.
Question-8B:
The percent abundance of the most common isotope of magnesium is:
80%
80%
Question-9A
Question-9B
The average atomic mass of magnesium:
Why is the calculated value in part (A) only an estimate of the average atomic
mass of the element magnesium?
(24x80)+(25x10)+(26x10) = 24.3g/mol
The graph uses mass percentage and not atomic mass number which means they took the average, and you cannot know the % abundance with the given scale from the graph.
Question-12:
Question-11:
11A. Sum of all percent abundances for magnesium= 100, because: All of the atoms= 100% (79+10+11). 11B. Since peak A is 100(tallest peak), the total of all peaks/relative intesnsities for Mg+ will be > 100
12A. 100+13+14= 127 magnesium ions were detected by the mass spectrum 12B. 100/127*100=78.7=79% (24Mg ions) 12C. 13/127=10.2%=10%
Question-14
14A. 35Cl-35Cl=70 amu
35Cl-37Cl=72 amu 37Cl-37Cl=74 amu
14B. 35Cl and 37Cl atoms
List the three possible combinations of the two isotopes and their total mass number.
Explain the remaining two lines in the spectrum.
Thank you
Use images in your presentation
And use this space to caption it. To insert an image, you can upload it from your computer or use the resources in the Editor.
Question-13
- 19 is the number of atoms
Propose an explanation for the two lines on fluorine’s mass spectrum.
-38 is the number of molecules
The molecules (38 amu) break or get fragmented in the ionization chamber to give the atomic peak at 19.
-Since most of the fluorine would be diatomic, there is a larger peak at mass/charge 38.
Insert an awesome video for your presentation.
Convince 67% of the audience. This is because visual language facilitates the rapid acquisition of knowledge in an intuitive way. Could it be said that images are the key to success? Pretty much.
Use images inyour presentation
Step 2
Synthesis and organization, the two pillarsof presentation
Narrative beings. We tell thousands and thousands of stories. ⅔ of our conversations are stories.
Step 3
Step 1
Social beings. We need to interact with one another. We learn in a collaborative way.
We are visual beings. We can understand images from millions of years ago, even from other cultures.
Awesome timeline, step by step
Contextualize your topic with a subtitle
20XX Interactivity
20XXAnimation
20XXCreativity
20XXWow effect
20XXMagic
Convince 67%of the audience.
20XX Interactivity
20XXAnimation
20XXCreativity
20XXWow effect
20XXMagic
Maps are a great ally, use them!
65%
Interactive visual communication improves the results of communication on any topic and in any context.
90%
of visual information is assimilated better.
Use tables and infographics
Visual communication is a key tool. We find it easier to ‘read’ images than to read awritten text.
Introduce the team and put faces to the names!
Name Surname
Name Surname
Name Surname
To manage a team, youhave to listen
Involve them in thedifferent objectives.
Help them to be better so that your team helps you
Don’t forgetto publish!
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Transcript
Mass Spectrum Module-2
Made by: Aseel, Anas, Tala, Khaled
What is a Mass Spectrum?
A mass spectrum is a graphical representation that displays ions based on their mass-to-charge ratio and their respective intensities, which is used to identify and quantify chemical compounds in a sample by revealing both the mass and relative abundance of ions.
Question-8A:
The most common isotope for Magnesium is Magnesium-24, since it's the closest number to its molar mass, and its charge is +1.
Question-8B:
The percent abundance of the most common isotope of magnesium is:
80%
80%
Question-9A
Question-9B
The average atomic mass of magnesium:
Why is the calculated value in part (A) only an estimate of the average atomic mass of the element magnesium?
(24x80)+(25x10)+(26x10) = 24.3g/mol
The graph uses mass percentage and not atomic mass number which means they took the average, and you cannot know the % abundance with the given scale from the graph.
Question-12:
Question-11:
11A. Sum of all percent abundances for magnesium= 100, because: All of the atoms= 100% (79+10+11). 11B. Since peak A is 100(tallest peak), the total of all peaks/relative intesnsities for Mg+ will be > 100
12A. 100+13+14= 127 magnesium ions were detected by the mass spectrum 12B. 100/127*100=78.7=79% (24Mg ions) 12C. 13/127=10.2%=10%
Question-14
14A. 35Cl-35Cl=70 amu 35Cl-37Cl=72 amu 37Cl-37Cl=74 amu 14B. 35Cl and 37Cl atoms
List the three possible combinations of the two isotopes and their total mass number.
Explain the remaining two lines in the spectrum.
Thank you
Use images in your presentation
And use this space to caption it. To insert an image, you can upload it from your computer or use the resources in the Editor.
Question-13
- 19 is the number of atoms
Propose an explanation for the two lines on fluorine’s mass spectrum.
-38 is the number of molecules
The molecules (38 amu) break or get fragmented in the ionization chamber to give the atomic peak at 19.
-Since most of the fluorine would be diatomic, there is a larger peak at mass/charge 38.
Insert an awesome video for your presentation.
Convince 67% of the audience. This is because visual language facilitates the rapid acquisition of knowledge in an intuitive way. Could it be said that images are the key to success? Pretty much.
Use images inyour presentation
Step 2
Synthesis and organization, the two pillarsof presentation
Narrative beings. We tell thousands and thousands of stories. ⅔ of our conversations are stories.
Step 3
Step 1
Social beings. We need to interact with one another. We learn in a collaborative way.
We are visual beings. We can understand images from millions of years ago, even from other cultures.
Awesome timeline, step by step
Contextualize your topic with a subtitle
20XX Interactivity
20XXAnimation
20XXCreativity
20XXWow effect
20XXMagic
Convince 67%of the audience.
20XX Interactivity
20XXAnimation
20XXCreativity
20XXWow effect
20XXMagic
Maps are a great ally, use them!
65%
Interactive visual communication improves the results of communication on any topic and in any context.
90%
of visual information is assimilated better.
Use tables and infographics
Visual communication is a key tool. We find it easier to ‘read’ images than to read awritten text.
Introduce the team and put faces to the names!
Name Surname
Name Surname
Name Surname
To manage a team, youhave to listen
Involve them in thedifferent objectives.
Help them to be better so that your team helps you
Don’t forgetto publish!
Lorem ipsum dolor
Consectetur adipiscing elit
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt.
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Consectetur adipiscing elit
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt.
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Consectetur adipiscing elit
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Consectetur adipiscing elit
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