Download : Chapter3.doc
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일반 화학 자유 5판 해법
일반화학 자유 5판 챕터3 , 일반 화학 자유 5판 솔루션화학솔루션 , 일반화학 자유 chapter
일반화학 자유 5판
3.5 (34.968 amu)(0.7553) ? (36.956 amu)(0.2447) ? 35.45 amu
3.6 Strategy: Each isotope contributes to the average atomic mass based on its relative abundance. Multiplying the mass of an isotope by its fractional abundance (not percent) will give the contribution to the average atomic mass of that particular isotope.
It would seem that there are two unknowns in this problem, the fractional abundance of 6Li and the fractional abundance of 7Li. However, these two quantities are not independent of each other; they are related by the fact that they must sum to 1. Start by letting x be the fractional abundance of 6Li. Since the sum of the two abundance’s m…(skip)