Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.

[tex]M=95\%\ \text{of}\ 31.972 +0.76\%\ \text{of}\ 32.971 +4.22\%\ \text{of}\ 33.967 \\\\M=\dfrac{95}{100}\times 31.972 +\dfrac{0.76}{100}\ \times \ 32.971 +\dfrac{4.22}{100} \times \ 33.967\\\\M=32.057\ \text{amu}[/tex]

So, the average atomic mass of sulfur is 32.057 amu.

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dsdrajlin dsdrajlin · Answer 2 · 2021-10-22T15:02:32+02:00

The average atomic mass of sulfur is 32.06 amu if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.

Sulfur is formed by 3 isotopes: 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.

The average atomic mass (am) is a weighted average that takes into account the mass and the abundance of each isotope.

[tex]am = \frac{\Sigma m_i \times ab_i }{100} = \frac{31.972amu \times 95.00 + 32.971amu \times 0.76 + 33.967amu \times 4.22}{100} = 32.06 amu[/tex]

The average atomic mass of sulfur is 32.06 amu if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.

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Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.​

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Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971 amu and 4.22% have a mass of 33.967 amu.