If we start with 1.000 g of strontium-90,0.953 g will remain after 2.00 yr.This means that the half-life of strontium-90 is ________ yr.

Question

Quizplus · Accepted Answer

The decay of strontium-90 follows first-order kinetics. The half-life can be calculated using the formula: t(1/2) = (0.693/k), where k is the rate constant. Using the formula ln(N0/N) = kt, where N0 is the initial amount, N is the remaining amount, and t is time, we can find k and then calculate the half-life. The calculation shows that the half-life is approximately 28.8 years.

If We Start with 1