Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electro

Question

Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon. Isotope | Isotopic Mass (amu) | Abudance % 28Si | 27.976927 | 92.22 29Si | 28.976495 | 4.69 30Si | 29.973770 | 3.09 27.9801 amu 28.7260 amu 28.9757 amu 28.0855 amu 29.2252 amu

          Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon.

Isotope | Isotopic Mass (amu) | Abudance %
28Si | 27.976927 | 92.22
29Si | 28.976495 | 4.69
30Si | 29.973770 | 3.09

27.9801 amu
28.7260 amu
28.9757 amu
28.0855 amu
29.2252 amu

Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon.

Isotope | Isotopic Mass (amu) | Abudance %
28Si | 27.976927 | 92.22
29Si | 28.976495 | 4.69
30Si | 29.973770 | 3.09

27.9801 amu
28.7260 amu
28.9757 amu
28.0855 amu
29.2252 amu

Added by Amanda G.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert David Collins

08/30/2022

Step 1

Step 1: Calculate the atomic mass of silicon using the isotopic masses and abundances given. Show more…

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Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes: 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon. Isotope 28Si 29Si 30Si Isotopic Mass (amu) 27.976927 28.976495 29.973770 Abundance (%) 92.22 4.69 3.09