What mass of ¹⁴C (half-life = 5730 years)do you need to provide a decay rate of 280.0 Bq?

Question

Quizplus · Accepted Answer

The decay rate (activity) is given by A = λN, where λ is the decay constant and N is the number of atoms. The decay constant λ can be calculated using the half-life: λ = ln(2) / 5730 years. Convert the half-life to seconds and solve for N using A = 280 Bq. Then, use the number of atoms to find the mass using the molar mass of carbon-14.

What Mass of 14C (Half-Life = 5730 Years)do You Need

What Mass of ¹⁴C (Half-Life = 5730 Years)do You Need