Calculate the Energy Released in Joules When One Mole of Polonium-214

question 18

Multiple Choice

Calculate the energy released in joules when one mole of polonium-214 decays according to the following equation. Particle Mass (amu)
Pb-210
209) 98284
Po-214
213) 99519
He-4
4) 00260
(1 kg = 6.022 × 10²⁶ amu;
N_A = 6.022 × 10²³ mol^-1;
C = 2.99792458 × 10⁸ m/s)

• A)8.78 × 10¹⁴ J/mol
• B)7.2 × 10¹⁴ J/mol
• C)8.76 × 10¹¹ J/mol
• D)-9.75 × 10^-3 J/mol
• E)1.46 × 10^-9 J/mol

---

Definitions:

Troubled Student

A student facing personal, academic, or emotional difficulties impacting their performance or behavior.

Gear Shift Lever

A mechanical device used in vehicles to change gears manually, enabling the driver to control the transmission and adjust the vehicle's speed and torque.

Companies

Legal entities set up to engage in commercial, industrial, or professional activities, often with the goal of generating profit.

School Psychologist

A professional who supports students' ability to learn and teachers' ability to teach, applying expertise in mental health, learning, and behavior to help children and youth succeed academically, socially, behaviorally, and emotionally.