Q: The amount of carbon-14 in a piece of wood is found to be one-sixth of its amount in a fresh piece of wood. Calculate the age of old piece of wood (half-life of carbon-14 = 5730 yr). Q: An ancient wooden artifact found in China has 14C decay rate of 5.2 counts per minutes per gram of carbon. A comparison to a freshly cut piece of wood has 13.6 counts per minutes per gram of carbon. Given the rate of C-14 decay is 5730 years, determine the age of this artifact. Q: Consider a sample of organic material that contains 1 mg of C. Suppose it has a 14C/12C atom ratio of 1.2 x 1014. (a) How many 14C atoms are present? (b) What would be the expected 14C disintegration rate for this sample? (c) What is the age of this sample? Q: A tiny piece of paper (produced from formerly living plant matter) taken from the Dead Sea Scrolls has an activity of 10.8 disintegrations per minute per gram of carbon. If the initial C-14 activity was 13.6 disintegrations/min/g of C, estimate the age of the Dead Sea Scrolls.
Q: The amount of carbon-14 in a piece of wood is found to be one-sixth of its amount in a fresh piece of wood. Calculate the age of old piece of wood (half-life of carbon-14 = 5730 yr). Q: An ancient wooden artifact found in China has 14C decay rate of 5.2 counts per minutes per gram of carbon. A comparison to a freshly cut piece of wood has 13.6 counts per minutes per gram of carbon. Given the rate of C-14 decay is 5730 years, determine the age of this artifact. Q: Consider a sample of organic material that contains 1 mg of C. Suppose it has a 14C/12C atom ratio of 1.2 x 1014. (a) How many 14C atoms are present? (b) What would be the expected 14C disintegration rate for this sample? (c) What is the age of this sample? Q: A tiny piece of paper (produced from formerly living plant matter) taken from the Dead Sea Scrolls has an activity of 10.8 disintegrations per minute per gram of carbon. If the initial C-14 activity was 13.6 disintegrations/min/g of C, estimate the age of the Dead Sea Scrolls.
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Transcribed Image Text:Q: The amount of carbon-14 in a piece of wood is found to be one-sixth of its amount in a fresh
piece of wood. Calculate the age of old piece of wood (half-life of carbon-14 = 5730 yr).
Q: An ancient wooden artifact found in China has 14C decay rate of 5.2 counts per minutes per
gram of carbon. A comparison to a freshly cut piece of wood has 13.6 counts per minutes per
gram of carbon. Given the rate of C-14 decay is 5730 years, determine the age of this artifact.
Q: Consider a sample of organic material that contains 1 mg of C. Suppose it has a 14C/12C atom
ratio of 1.2 x 1014. (a) How many 14C atoms are present? (b) What would be the expected 14C
disintegration rate for this sample? (c) What is the age of this sample?
Q: A tiny piece of paper (produced from formerly living plant matter) taken from the Dead Sea
Scrolls has an activity of 10.8 disintegrations per minute per gram of carbon. If the initial C-14
activity was 13.6 disintegrations/min/g of C, estimate the age of the Dead Sea Scrolls.
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