chemistry

If C14 has a half-life of 4,000 years, what fraction will be remaining after 36,000 years?

1. 👍 0
2. 👎 0
3. 👁 119
1. See you I-131 post. Same procedure.

1. 👍 0
2. 👎 0
posted by DrBob222

Similar Questions

1. Physics

Suppose you have 100 g of radioactive plutonium-239 with a half-life of 24,000 years. How many grams will remain after (a) 12,000 years (b) 24,000 years (c) 96,000 years?

asked by b on September 2, 2012
2. Physics

Suppose you have 100 g of radioactive plutonium-239 with a half-life of 24,000 years. How many grams will remain after (a) 12,000 years (b) 24,000 years (c) 96,000 years?

asked by b on September 2, 2012
3. Economics

Given the following data, use present worth analysis to ﬁnd the best alternative, A,B, or C. A B C Initial cost \$10,000 15,000 \$12,000 Annual beneﬁt 6,000 10,000 5,000 Salvage value 1,000 −2,000 3,000 Useful life 2 years 3

asked by Anonymous on September 30, 2014
4. Accounting

LRF Corporation purchased a patent for \$450,000 on September 1, 2006. It had a useful life of 10 years. On January 1, 2008, LRF spent \$110,000 to successfully defend the patent in a lawsuit. LRF feels that as of that date, the

asked by Cathie on April 25, 2009
5. science

suppose you have 100grams of radioactive plutonium-239 with a half-life of 24,000 years. how many grams of plutonium-239 will remain after: A)12,000 years B)24,000 years C)96,000 years how do i do this??????

asked by matt on September 10, 2007
6. Science

Can anyone help me find the half-life of strontium-90? I also need an explanation on how to do it. Thanks!! Radioactive Decay of Strontium-90: At 0 years: 100% remaining At 28 years: 50% remaining At 56 years: 25% remaining At 84

asked by Jane on March 12, 2015
7. science

Im having trouble understanding Half life and what not... 1.If each roll of the dice represents 10,000 years, what is the approximate half-life (in years) of the element Lokium? 2. If each roll of the dice is 10,000 years, what is

8. math: pre-calculus

You have 5 grams of carbon-14; whose half-life is 5730 years. a)Write the rule of the function that gives the amount of carbon-14 remaining after x years. b)How much carbon-14 will be left after 4,000 years? c)When will there be

asked by Nicky on May 8, 2016
9. Science

How much of a radioactive material with a half-life of 12,000 years is left after 36,000 years of decay?

asked by Angie on April 17, 2009
10. Math Word Problem

The Mesozoic Era began about 250,000,000 years ago. The Palezoic Era began 292,000,000 years before that. How long ago did the Palezoic Era Begin? A. 42,000,000 Years B. 492,000,000 Years C. 542,000,000 Years D. 556,000,000 Years

asked by Jared on September 24, 2013

More Similar Questions