i know the mass(amu), the % abundance and the mass number... how do i find the average atomic mass?
2006-10-04 12:47:16 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
"The average mass of an atom is found by averaging over the natural abundances of its isotopes.
Example: Lithium
6Li 6.015 amu 7.42%
7Li 7.016 amu 92.58%
Avg. mass = 6.015 amu x 0.0742
+ 7.016 amu x 0.9258
= 6.941 amu
2006-10-04 12:53:34 · answer #1 · answered by dontknow 5 · 16⤊ 4⤋
Average Atomic Mass
2016-09-30 21:37:51 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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2015-08-04 09:17:06 · answer #3 · answered by Rhodie 1 · 0⤊ 0⤋
multiply each amu times the %abundance.
Then sum them all and divide by 100.
What is the mass number?
2006-10-04 12:51:36 · answer #4 · answered by Dr. J. 6 · 8⤊ 6⤋
neutrons + protons = atomic mass
2006-10-04 12:55:37 · answer #5 · answered by queen_sansing 1 · 1⤊ 37⤋
add em all up. and divide by the number of em
2006-10-04 12:48:32 · answer #6 · answered by ben b 5 · 1⤊ 35⤋