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Silicon has three naturally occurring isotopes: Si-28 that
Chapter 3, Problem 115CQ(choose chapter or problem)
Silicon has three naturally occurring isotopes: Si-28 that has a percent abundance of 92.23% and a mass of 27.977 amu, Si-29 that has a 4.68% abundance and a mass of 28.976 amu, and Si-30 that has a percent abundance of 3.09% and a mass of 29.974 amu. What is the atomic mass of silicon? (3.5)
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QUESTION:
Silicon has three naturally occurring isotopes: Si-28 that has a percent abundance of 92.23% and a mass of 27.977 amu, Si-29 that has a 4.68% abundance and a mass of 28.976 amu, and Si-30 that has a percent abundance of 3.09% and a mass of 29.974 amu. What is the atomic mass of silicon? (3.5)
ANSWER:Solution 115 CPQHere, we have to find out the atomic mass of Silicon.Step 1 of 3The atomic mass of Silicon can be calculated by the following formulae.Atomic mass of Silicon = Mass of Silicon isotope Given: Given Isotope Abundance in % Atomic mass unit (amu) Si - 28 92.23 27.977 Si - 29 4.68 28.976 Si -30 3.09 29.974______________________________________________________________________________