Chem Lab Essay Example

Isotopes and Atomic Mass
It’s Vegium

I. Purpose The purpose of this lab is to determine the average weights of each isotope of the “element” vegium, determine the relative abundance of isotopes of vegium, and calculate from experimental data the atomic mass of vegium.
II. Apparatus Sample of vegium, balance, weighing cups
III. Data Tables
| |Beanium |Peaium |Cornium |Total |
|Number of Particles |79 |47 |70 |196 |
|Mass of Particles (g) |46.72 |8.74 |10.63 |66.09 |
|Average mass of each (g) |.5914 |.1860 |.1519 |.9293 |
|Percent Abundance |40.31% |23.98% |35.71% |100% |

Beanium, Peaium, and Cornium

Average Bean Mass
|Bean Size |Mass (g) |
|Large |.41 |
|Small |.65 |
|“Average” |.75 |

IV. Calculations 1. The average mass of each individual “atom” for each type of isotope i. Beanium

ii. Peaium

iii. Cornium

2. The un-weighted average mass for the total sample

3. Percent abundance i. Beanium

ii. Peaium

iii. Cornium

4. The weighted average atomic mass

5. Average mass of the largest and smallest Beanium

V. Questions