# Using the average mass of each isotope calculated in

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• apiccirello
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Using the average mass of each isotope calculated in Part 1, determine the weighted  contribution (weighted average mass) that each isotope makes to the total mass of a particle of  “Beanium”. Weighted average mass =      % of total         X    average mass per bean   (in decimal form) Calculate the sum of the weighted contributions for the four isotopes.  This is the  Experimental Value.   Data Table 2 Bean Variety       Navy        Pinto     Kidney      Lima # Used % of Total Average Mass     per bean (g)         Weighted  Average Mass (g) Sum  of the Weighted Average Masses for the four  isotopes (g)                                 ( EXPERIMENTAL VALUE ) 2.  Put the counted beans (all varieties) from step 1 above into a cup       and determine the mass of its contents. Record in Data Table 3. 3.  Return all beans to their original containers.

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CALCULATIONS:  ( Maintain 2 decimal places in all calculations. ) a. Determine the measured average mass of a Beanium particle.
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