How Do Sulfur Isotopes Determine Its Average Atomic Mass?

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SUMMARY

Sulfur has four naturally occurring isotopes: Sulfur-32 (95.0% abundance), Sulfur-33 (0.76% abundance), Sulfur-34 (4.22% abundance), and Sulfur-36 (0.014% abundance). The average atomic mass of sulfur can be calculated using the formula: (mass of isotope × abundance of isotope) summed for all isotopes, then divided by 100. The specific calculation for sulfur involves multiplying the mass of each isotope by its respective abundance and summing these products. The average atomic mass of sulfur is determined to be 32.06 g.

PREREQUISITES
  • Understanding of isotopes and their abundances
  • Basic knowledge of atomic mass calculations
  • Familiarity with weighted averages
  • Ability to perform multiplication and addition of decimal numbers
NEXT STEPS
  • Learn about the concept of isotopes in chemistry
  • Study the calculation of average atomic mass in detail
  • Explore the significance of isotopic abundance in scientific research
  • Investigate how isotopes are used in various applications, such as radiometric dating
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ReoFonzo
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Homework Statement



Sulfur has 4 naturally occurring isotopes:

Sulfur-32 Abundance = 95.0%
Sulfur-33 Abundance = 0.76%
Sulfur-34 Abundance = 4.22%
Sulfur-36 Abundance = 0.014%

Sulfur's symbol is S, it has 16 electrons and a mass of 32.06g

Homework Equations


I'm actually looking for the actual formula which I lost.


The Attempt at a Solution


Sulfur's Isotopes divided by its abundance...
 
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What's the actual question here? What formula are you looking for?
 
Last edited:
how do i find calculate the average atomic mass for sulfur?
 
Well, would you not take the sum of (mass of isotope*abundance of isotope) then divide the sum by 100?
 
m = mass of specified isotope
a = abundance of specified isotope as a part of 1.00 (100%

(m-32 x a-32) + (m-33 x a-33)... etc.

so (32.06 x .95) for sulfur-32 and so on
 

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