Question

The amount of carbon -14 present in 9433 years will be approximately blank grams. Round to the nearest whole number

Answer 1

The decay model is given as,

`A\text{ = 16e}^(-0.000121t)`

After t = 9433 years,

`\begin{gathered} A\text{ = 16e}^(-0.000121*9433) \\ A\text{ = 16e}^(-1.141393) \\ A\text{ = 16 }*\text{ 0.3194} \\ A\text{ = 5.11 }\approx\text{ 5} \end{gathered}`

Thus amount of carbon left is 5 grams.