# Chemistry

the concentration of tritium in the wine is 0.34 times that found in the freshly bottled wines. if the half life of the tritium is 12.3 years, estimate the time elapsed since the wine was bottled. help please. thank you :)

1. 👍 0
2. 👎 0
3. 👁 132
1. time
= -(half life)*ln(fraction remaining)/ln(2)
= -(12.3)*(0.34)/ln(2)
= 19.1 years.

1. 👍 0
2. 👎 0
posted by MathMate
2. thanks a lot :)

1. 👍 0
2. 👎 0
posted by Queen
3. Cesium-137 has a half life of 30.0 years. If initially there are 8.0 kg of cesium-137 present in a sample, how many kg will remain after 60.0 years?

1. 👍 0
2. 👎 0
posted by brian

## Similar Questions

1. ### Chemistry

The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is formed from hydrogen in water vapor in the upper atmosphere by cosmic bombardment, so all naturally

asked by Anonymous on February 1, 2015
2. ### chemistry

the half-life of tritium is 12.26 y what would be the rate of decay of tritium atoms per second in 1.00 L of hydrogen gas at STP containing 0.15% tritium atoms ?

asked by ahmed on January 15, 2016
3. ### chemistry

the half-life of tritium is 12.26 y what would be the rate of decay of tritium atoms per second in 1.00 L of hydrogen gas at STP containing 0.15% tritium atoms ?

asked by ahmed on January 14, 2016
4. ### chemistry

the half-life of tritium is 12.26 y what would be the rate of decay of tritium atoms per second in 1.00 L of hydrogen gas at STP containing 0.15% tritium atoms ?

asked by kiloa on January 14, 2016
5. ### chemistry

the half-life of tritium is 12.26 y what would be the decay of tritium atoms per second in 1.00 L of hydrogen gas at STP containing 0.15% tritium atoms ?

asked by kiloa on January 14, 2016
6. ### art

What factor might motivate a museum to hastily restore art without considering whether or not the restoration good for the piece? A. a freshly-restored artwork will last longer B. a freshly-restored artwork is easier to display C.

asked by anonymous on February 12, 2015
7. ### algebra - half lives

Half-life of tritium is 12.32 years. Write decay equation as N(t) = N(subzero)e^(-rt) where t is the time in days, N(subzero) is the starting amt of tritium and N(t) is amt of tritium at time t. don't know how to find -r.

asked by Tritium on November 7, 2011
8. ### Chemistry

A 25.40 g sample of water containing tritium,(3/1)H , emits 1450 beta particles per second. Tritium is a weak beta emitter, with a half-life of 12.3 yr. What fraction of all the hydrogen in the water sample is tritium?

asked by Steven on February 13, 2012
9. ### Biology

Wine is made by mixing yeast with grapes and allowing the yeast cells to undergo fermentation. Sparkling wine is a type of wine that contains high levels of dissolved carbon dioxide. What is the source of the carbon atoms in the

asked by Steve on February 1, 2016
10. ### Chemistry

The half life of tritium is 12.3 yr. If 62.2mg of tritium is released from a nuclear power plant during the course of an accident, what mass of this nuclide will remain after 105 yr?

asked by TP on March 3, 2018

More Similar Questions