Question

Calculate the activity due to 4C in 1 . 00 kg of carbon found in a...

Calculate the activity due to 4C in 1 . 00 kg of carbon found in a living organism . Express the activity in units of Bq and Ci . It is known , that the half - life of 4C is 5730 years.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An archeological specimen containing 7.5 g of carbon has an activity of 1.1 Bq. How old...
An archeological specimen containing 7.5 g of carbon has an activity of 1.1 Bq. How old (in years) is the specimen? Carbon-14 has a half-life of 5730 years, and an activity of 0.23 Bq per gram of carbon in a living organism.
In a living organism, a fixed fraction 1.30 x 10-12 of 12C is the radioactive isotope...
In a living organism, a fixed fraction 1.30 x 10-12 of 12C is the radioactive isotope 14C, which has a half life of 5730 y. What is the activity of the 14C in .95g of 12C found in living tissue in Bq?
44g of petrified wood was found in a petrified forest. A sample showed a carbon-14 activity...
44g of petrified wood was found in a petrified forest. A sample showed a carbon-14 activity of 100 decays/minutes. How long has the tree been dead (in years)? (The half-life of carbon-14 is 5730 years and freshly cut wood has a carbon-14 activity of 14.96 decays/min per gram.)
Carbon-14 is unstable and undergoes β- decay, with a half-life of 5730 years. (a) What does...
Carbon-14 is unstable and undergoes β- decay, with a half-life of 5730 years. (a) What does it decay into? (b) How much energy is released in the reaction? (c) If a 1 g sample of carbon contains 0.1% carbon-14, what is the activity in units of curie (Ci), where 1 Ci = 3.7 × 1010 decay/s? (d) What is the activity after 20,000 years have passed?
An ancient club is found that contains 100 g of pure carbon and has an activity...
An ancient club is found that contains 100 g of pure carbon and has an activity of 6.5 decays per second. Determine its age assuming that in living trees the ratio of (14C/12C) atoms is about 1.30×10^-12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02×10^23. Ans in Years
An ancient club is found that contains 100 g of pure carbon and has an activity...
An ancient club is found that contains 100 g of pure carbon and has an activity of 6 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.10 × 10-12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02 × 1023.
An ancient club is found that contains 180 g of pure carbon and has an activity...
An ancient club is found that contains 180 g of pure carbon and has an activity of 7.5 decays per second. Determine its age assuming that in living trees the ratio of (14C12C)(14C12C) atoms is about 1.30 × 10-12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02 × 1023. ____years
The cloth shroud from around a mummy is found to have a 14C activity of 8.0...
The cloth shroud from around a mummy is found to have a 14C activity of 8.0 disintegrations per minute per gram of carbon as compared with living organisms that undergo 16.3 disintegrations per minute per gram of carbon. From the half-life for 14C decay, 5715 yr , calculate the age of the shroud. Express your answer using two significant figures.
Part A You are using a Geiger counter to measure the activity of a radioactive substance...
Part A You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. counts after 78.4 minutes , what is the half-life of this substance? Express your answer with the appropriate units. Part B An unknown radioactive substance has a half-life of 3.20 hours . If 26.8 g of the substance is currently present, what mass A0 was present 8.00 hours...
You are using a Geiger counter to measure the activity of a radioactive substance over the...
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. counts after 54.3 minutes , what is the half-life of this substance? Express your answer with the appropriate units. t1/2 = 27.2 min Correct Part B An unknown radioactive substance has a half-life of 3.20 hours . If 20.6 g of the substance is currently present, what mass A0 was...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT