An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of...

An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 163 g (HINT: Assume all the carbon is ¹²C and determine the number of atoms) and careful measurements show that the remaining ¹⁴C has a current decay rate of 21 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of ¹⁴C to ¹²C when the animal died was 1.3×10^-12 & the half-life of ¹⁴C is 5730 y.
age of bone =

A geologist finds an old rock and wants to determine its age using rubidium-strontium dating. This is possible because ⁸⁷Rb, which has a half-life of 4.75×10¹⁰ y, undergoes β ⁻ decay and becomes ⁸⁷Sr. The geologist determines that the ratio of ⁸⁷Sr to ⁸⁷Rb is 0.289. Assuming there was no ⁸⁷Sr in the rock when it was formed, determine the age of the rock.
age of rock =

Expert Solution

This is a problem of determination of age using radiation scale...Let's follow how to do.

genius_generous answered 9 months ago

An ancient wooden club is found that contains 280g of carbon and has an activity of...

An ancient wooden club is found that contains 280g of carbon and has an activity of 7.3 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3

An ancient club is found that contains 189g of carbon and has an activity of 6.66...

An ancient club is found that contains 189g of carbon and has an activity of 6.66 decays per second. Determine its age in years (do not enter units) assuming that in living trees the ratio of 14C/12C atoms is 1.30×10-12.

Graphite and diamond are both made from carbon atoms. A) List some of the physical characteristics...

Graphite and diamond are both made from carbon atoms. A) List some of the physical characteristics of each. B) Give one application for graphite and one for diamond. C) If both materials are made of carbon, why does such a difference in properties exist?

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 wooden club is found that contains 80 g of carbon and has an activity...

An ancient wooden club is found that contains 80 g of carbon and has an activity of 7.5 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3×10−12.

An ancient wooden club is found that contains 68 g of carbon and has an activity...

An ancient wooden club is found that contains 68 g of carbon and has an activity of 8.4 decays per second . Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3×10?12.

An ancient club is found that contains 190 g of pure carbon and has an activity...

An ancient club is found that contains 190 g of pure carbon and has an activity of 4.5 decays per second. Determine its age assuming that in living trees the ratio of (14C/12C) atoms is about 1.00 × 10-12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02 × 1023. Please answer in years please

An ancient club is found that contains 150 g of pure carbon and has an activity...

An ancient club is found that contains 150 g of pure carbon and has an activity of 5.5 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.00 x 10^-12 . Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02 x 10^23 .

A geologist finds that a Moon rock whose mass is 9.08 kgkg has an apparent mass...

A geologist finds that a Moon rock whose mass is 9.08 kgkg has an apparent mass of 6.06 kgkg when submerged in water. Part A What is the density of the rock? Express your answer to three significant figures and include the appropriate units.

A penny, which has a mass 2.5 grams and is made of zinc, is released from...

A penny, which has a mass 2.5 grams and is made of zinc, is released from rest just beneath the surface of some 80 proof vodka. (80 proof means 40% ethyl alcohol and 60% water, by volume). If the height of the vodka in the bottle is 25cm, how long will it take for the penny to reach the bottom? (Ignore drag and other frictional effects. Assume the only effect of the fluid is buoyancy.)

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