Tritium- -3-1H has a half-life of 12-26 years- A 5-00 mL sample of tritiated water has an activity of 2-40 times 10-9 cpm- How many years will it take the activity to fall to 3-00 times 10-8 cpm-6-1336-7812-2624-52

Question

Toppr Admin · Accepted Answer

As we know-Activity is-xA0-xA0- C-C0-12-y

Tritium, $_{1}^{3} H$ has a half-life of 12.26 years. A 5.00 mL sample of tritiated water has an activity of $2.40 \times 10^{9}$ cpm. How many years will it take for the activity to fall to $3.00 \times 10^{8}$ cpm?
6.13
36.78
12.26
24.52

As we know,
Activity is
$C = C_{0} {(\frac{1}{2})}^{y}$

Tritium, 31H has a half-life of 12.26 years. A 5.00 mL sample of tritiated water has an activity of 2.40×109 cpm. How many years will it take for the activity to fall to 3.00×108 cpm?6.1336.7812.2624.52

As we know,Activity is C=C0(12)y

Tritium, $_{1}^{3} H$ has a half-life of 12.26 years. A 5.00 mL sample of tritiated water has an activity of $2.40 \times 10^{9}$ cpm. How many years will it take for the activity to fall to $3.00 \times 10^{8}$ cpm?
6.13
36.78
12.26
24.52

As we know,
Activity is
$C = C_{0} {(\frac{1}{2})}^{y}$