Calculate the atomic mass of silicon given the mass and natural occurrence of each isotope. Round your answer to the hundredths place.Isotope Mass Isotopic Abundance
Isotope Mass Isotopic Abundance
Silicon-28 27.9769 0.922
Silicon-29 28.9765 0.0467
Silicon-30 29.9738 0.0313
To calculate the atomic mass of silicon, we need to multiply the mass of each isotope by its respective abundance and sum them up.
Atomic mass of silicon = (Mass of Silicon-28 * Isotopic Abundance of Silicon-28) + (Mass of Silicon-29 * Isotopic Abundance of Silicon-29) + (Mass of Silicon-30 * Isotopic Abundance of Silicon-30)
= (27.9769 * 0.922) + (28.9765 * 0.0467) + (29.9738 * 0.0313)
= 25.72 + 1.35 + 0.94
= 28.01
Therefore, the atomic mass of silicon is approximately 28.01.