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The half-life of carbon-14 is approximately 6000 years. How much of 800 g
of this substance will remain after 30,000 years?

Respuesta :

fieryanswererft

Answer:

25 g will be left after 30,000

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:

[tex]\frac{m}{2^n}[/tex] ............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:

[tex]\frac{800}{2^5}[/tex]

25 g

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