Nigerian beans, Mexican beans, calculator, and paper. Raw Data Bean Total Mass w/ Cup Number of Beans American Beans 17. 489 g 75 Nigerian Beans 5. 95 g 25 Mexican Beans 3. 106 g 53 Calculated Data/Graphs Total Mass w/o cup Average of each Bean Average Atomic Mass American bean 16. 749 g . 2233 g Nigerian bean 5. 255 g . 2102 g Mexican bean 2. 366 g . 0586 g . Eggs Sample Calculation Error Analysis During this lab there was no error in the outcome or predicted outcome. The lab showed the average of all three of the biennium isotopes. The average is what was expected from the calculations. Conclusion The purpose of this experiment was to find the average atomic mass of the three isotopes of biennium.
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The average atomic mass of biennium was . 1640 grams. This procedure was effective in determining the average atomic mass of an element. Answers to Post lab Questions What is average atomic mass? Average atomic mass is the average mass of different isotopes of a certain element. For an element with isotopes, what pieces of information are needed to calculate average atomic mass? The abundance and mass of each isotopes is needed to calculate the average atomic mass.