lcjfletcher lcjfletcher

04-04-2021
Chemistry

contestada

Carbon 14 has a half-life of 5,730 years. If a sample contained 70 mg originally, how much is left after 17,190 years.

Respuesta :

keijosalonen keijosalonen

04-04-2021

Answer: Mass after three decay is 8.75 mg

Explanation: if you divide 17190 by 5730 you see three decays has happened.

So you divide mass by two three times. 70 mg :2 = 35 mg, 35 mg :2 = 17.5 mg

And 17.5 mg:2 = 8,75 mg

Answer Link

Otras preguntas

Atherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. Each tube of paint costs $8.50. Assume th

30 rounding to the nearest ten

Protein a is a chain of 660 amino acids. protein b is a chain of 11 amino acids. how many times as many amino acids does protein a have than protein b?

What were the last two states to ratify (approve) the constitution?

CO2 always contains 3g of C for every 8g of O. This is an example of

Suppose you're driving on a two-lane road on a very snowy night where the divider cannot be seen. however, in your mind, you're able to reconstruct where the di

Who is the narrator of the story of “Once in a Lifetime”? Who is the “you” that the narrator is addressing?

why is phytoplankton located near the oceans surface

Novartis created the novartis research institute for tropical diseases in singapore. the institute is unique because it is a not-for-profit organization that fo

What is the least effective way to treat heat exhaustion?