69.9k views
21 votes
The half-life of carbon-14 is approximately 6000 years. How much of 800 g

of this substance will remain after 30,000 years?

User Eumiro
by
8.0k points

1 Answer

13 votes

Answer:

25 g will be left after 30,000

Step-by-step explanation:

First how many time it decays in 30,000 years: 30,000 ÷ 6000

The answer will be 5 times, it decays.

Now use the formula:


(m)/(2^n) ............where m is mass and n is number of times it decays.

Here given mass is 800 g and decays 5 times

Using the formula:


(800)/(2^5)

25 g

User Marius Bardan
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories