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Stephen Pulliam is a passionate educator inspiring and challenging students to reach their potential in the classroom and beyond. For nearly 25 years, he has been shaping the minds of his students in the sciences and other STEM classes. In 2003, he began teaching AP Chemistry, became an AP Reader in 2009, and a Table Leader in 2012. In 2015, Stephen piloted materials for the AP Insight Chemistry program and soon thereafter became a consultant conducting workshops across the country. Stephen also serves as a consultant for the National Math and Science Initiative, leading workshops and student study sessions nationwide. Currently Stephen is the Chair of the Science Department at Delaware County Christian School in Newtown Square, Pennsylvania, in addition to teaching AP and Honors Chemistry. He also serves as the assistant coach to girls varsity basketball and middle school baseball. In his spare time, Stephen enjoys spending downtime with his wife and children, and especially venturing off on fishing trips with his son.

Convert each mass to moles. Express the answer inscientific notation.\begin{equation}a. 1.25 \times 10^{3} \mathrm{g} \mathrm{Zn} \quad \text { b. } 1.00 \mathrm{kg} \mathrm{Fe}\end{equation}

What is the mass in grams of each of the following?\begin{equation}\begin{array}{l}{\text { a. } 6.02 \times 10^{24} \text { atoms Bi }} \\ {\text { b. } 1.00 \times 10^{24} \text { atoms Mn }} \\ {\text { c. } 3.40 \times 10^{22} \text { atoms He }} \\ {\text { d. } 1.50 \times 10^{15} \text { atoms } \mathrm{N}} \\ {\text { e. } 1.50 \times 10^{15} \text { atoms } U}\end{array}\end{equation}

Summarize in terms of particles and mass, one-mole quantitiesof two different monatomic elements.

Explain how molar mass relates the mass of an atom to the mass of a mole ofatoms.

Arrange these quantities from smallest to largest in terms of mass: 1.0 mol of $\mathrm{Ar}, 3.0 \times 10^{24}$ atoms of $\mathrm{Ne},$ and 20 $\mathrm{g}$ of $\mathrm{Kr}$ .

Design a concept map that shows the conversion factors needed to convertbetween mass, moles, and number of particles.