Chemistry

Problem

a. A freshly prepared

10\,\text{g}

sample of carbon-14 has a half-life of

5730\,\text{y}

. Calculate its decay constant to three significant figures. b. Using the value of the decay constant obtained in part (i), determine the time required for the number of undecayed nuclei in the sample to be reduced to

1\%

of the original number. c. Express the time obtained in part (ii) in (1) years and (2) years and months, assuming

1\,\text{y}=365\,\text{d}

and

1\,\text{month}=30\,\text{d}

. State each answer to the nearest whole unit.

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