The radiochemist, Will I. Glow, studied thorium-232 and found that 2.82 × 10^-7 moles emitted 8.42 × 10⁶ α particles in one year. What is the decay constant for thorium-232?

Question

Quizplus · Accepted Answer

The decay constant (λ) can be calculated using the formula λ = (number of decays per year) / (number of moles × Avogadro's number). Substituting the given values, λ = (8.42 × 10^6) / (2.82 × 10^-7 × 6.022 × 10^23), which simplifies to approximately 4.96 × 10^-11 yr^-1.

The Radiochemist, Will I