Chemistry
posted by John .
An artifact has a carbon14 to carbon12 ratio that is onefourth the carbon14 to carbon12 ratio of a similar modern object. How old is the artifact? (The halflife of carbon14 is 5,715 years.)

Chemistry 
DrBob222
See your post above on the wood. This is the same kind of problem.
Respond to this Question
Similar Questions

math
An artifact was found and tested for its carbon14 content. If 76% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? 
math
An artifact was found and tested for its carbon14 content. If 79% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? 
Chemistry
A piece of wood found in an ancient city has a carbon14 to carbon12 ratio that is oneeighth the carbon14 to carbon12 ratio of a tree growing nearby. How old is the piece of wood? 
Algebra
An artifact was found and tested for its carbon14 content. If 74% of the orginal carbon14 was still present, what is its probable age (to the nearest 100 years)? 
Algebra
An artifact was found and tested for its carbon14 content. If 75% of the original carbon14 was still present what is its probable age to the nearest 100 years? 
algebra
An artifact was found and tested for its carbon14 content. If 75% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? 
Chemistry
An archeological artifact was subjected to radiocarbon dating. The artifact showed a carbon14 decay rate of 13.8 disintegrations/ min per gram of carbon. Carbon14 has a halflife of 5715 years, and currently living organisms decay … 
Algebra
An artifact was found and tested for its carbon14 content. If 76% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? 
calculus
A wooden artifact recovered from a tomb contains 29% of the carbon14 that is present in living trees. The half life of carbon14 is 5730 years. How long ago was the artifact made? 
Calculus
An artifact was found with 63.8% of Carbon 14, how old is the mummy, assuming the halflife of Carbon 14 is 5730 years.