The approximate half-life period of 14C is 5700 years.
Here, the piece of wood, which is found in a tomb, has experienced 4 half-lives.
Therefore, the age of the tree = 4 * (5700 years) = 22800 years
suppose a piece of wood found in a tomb has 4 half life of its origin...
Radiocarbon dating of a sample of wood from the tomb of an Egyptian pharaoh found that in the 1 gram of the sample there were 9.843 times 10^-15 mol of C-14 and 1.202 times 10^-2 mol of C-12. The C-14 isotope is radioactive and decays with a half-life of 5, 730 years: the C-12 isotope is stable (does not decay). If the initial ratio of these isotopes is known to have been Number of C-14/Number of C-12 = 1.20 times...
thank you for the help.
The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 74% of the carbon-14 expected in living matter when did the tree die? The tree died about years ago (Do not round until the final answer Then round to the nearest whole number.)
Carbon-14 has a half-life of 5,700 years. Suppose a sample of wood now has 12.5% as much Carbon-14 as it had when it formed. How old is the sample?
Carbon 14 has a half-life of 5.73*10^3 years. C-14 in a piece of living bone has an activity of 14 decays per minute per gram of bone. If a bone found under a parking lot in San Diego has an activity of 3.5 decays per minute per gram of bone, then approximately how long has it been since the bone was alive?
Question 37 2.56 pts A piece of fossilized wood has a carbon-14 radioactivity that is 1/4 that of new wood. The half- life of carbon-14 is 5730 years. How old is the cloth? O 3 x 5730 = 17,190 years O2 5730 - 11,460 years O 1 x 5730 - 5730 years a 0.25 x 5730 - 1432 years
1. The half-life of carbon-14 is 5730 years. A sample is found to have one-eighth the original amount of carbon-14 in it. How old is the sample? 5730 years, 716 years, 45800 years, 17200 years 2. Why wouldn't you use carbon-14 dating on a piece of shell that was estimated to be 1 million years old? Sea shells do not have radioisotopes, carbon dating is only useful on plants, uranium dating is better for items older than 1/2 million years,...
A piece of petrified wood is examined determined that only 25% of the or life of "C is 5,730 years, how ol examined via radioactive C dating, a first-order process. It is 25% of the original amount is still present in the sample. If the half- years, how old is the petrified wood? (4 points)
A mummified cat is found in an ancient Egyptian tomb. The activity per gram of carbon is found to be 10 decay/(min g). The mass of carbon-12 is 12 u (by definition), where u = 1.66 X 10-27 kg. If the half-life of Carbon-14 is 5730 years, then how old is the cat?
The half life for the decomposition of Carbon-14 is 5670 years. In radioactive carbon dating of a sample, a fossilized tree is found to have 22% of the Carbon-14 found in a living tree. How many years has the tree been dead?
The half life for the decomposition of Carbon-14 is 5670 years. In radioactive carbon dating of a sample, a fossilized tree is found to have 22% of the Carbon-14 found in a living tree. How many years has the tree been dead?