Chemical Formulas

Isotope Abundance


<div class="wp-block-create-block-problemblock">The nuclear power industry extracts ##^6##Li but not ##^7##Li from natural samples of lithium.  As a result, the average molar mass of commercial samples of lithium is increased.  The current abundace of the two isotopes are 7.42% and 95.58% respectively, and the masses of their atoms are 9.968 x 10##^{-24}## g and 1.165 x 10##^{-23}## g.  What is the current molar mass of a natural sample of lithium?</div>


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