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Practice calculating atomic masses of isotopes, elements, and compounds with problems and videos. Find out how to compare and convert moles, masses, and abundances of different substances.
- 4.7.1: Practice Atomic Mass
The average atomic mass is equal to the sum of the...
- 4.7.1: Practice Atomic Mass
Practice calculating the average atomic mass of fictional elements from their isotope masses and abundances with this online quiz.
Calculate the average atomic mass of an element with the follow isotope information: 4.35% have a mass of 49.9461 amu, 83.79% have amass of 51.9405 amu, 9.50% have a mass of 52.9407 amu, and 2.36% have a mass of 53.9389 amu.
Practice Calculating Average Atomic Mass with practice problems and explanations. Get instant feedback, extra help and step-by-step explanations.
25 Σεπ 2020 · The average atomic mass is equal to the sum of the fractional abundance times mass of each isotope. average = (fractional abundance of 121 Sb)(mass of 121 Sb) + (fractional abundance of 123 Sb)(mass of 123 Sb)
What is the average atomic mass? In this problem, they did not give us the percentages. However, since we know the number of atoms, we can easily calculate the percentages.
The average atomic mass is the average mass of all the isotopes that compose that element, weighted based on the natural abundance of each isotope. So, how do we calculate the average atomic mass? Let’s see this by doing an example on chlorine.
