Question
Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of $92.21 \%, \mathrm{Si}-29$ with mass 28.9765 amu and a natural abundance of $4.69 \%$ and Si-30 with mass 29.9737 amu and a natural abundance of $3.10 \% .$ Calculate the atomic mass of silicon.
Step 1
This is done by dividing the percentage by 100. For Si-28, Si-29, and Si-30, the decimal abundances are $0.9221, 0.0469,$ and $0.0310$ respectively. Show more…
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Silicon has three naturally occurring isotopes. Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a natural abundance of 3.10%. Calculate the atomic mass of silicone.
98. Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a natural abundance of 3.10%. Calculate the atomic mass of silicon.
Silicon has three naturally occurring isotopes (Si-28, Si-29, and Si-30). The mass and natural abundance of Si-28 are 27.9769 amu and 92.2%, respectively. The mass and natural abundance of Si-29 are 28.9765 amu and 4.67%, respectively. Find the mass and natural abundance of Si-30.
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