Chemistry

posted by .

A pure sample of tritium, 3H, was prepared and sealed in a container for a number of years. Tritium undergoes รข decay with a half-life of 12.32 years. How long has the container been sealed if analysis of the contents shows there are 5.25 mol of 3H and 6.35 mol of 3He present?

another problem. help please. thanks :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. CHemistry

    The half-life of tritium is approximately 12 years. What will be the molar ratio of tritium to helium-3 in a sealed sampel after 25 years?
  2. half life

    tritium has a half life of 24.3 years .a sample of 0.1 is produced . will tthe mass of tritium change after 24.3 years
  3. 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.
  4. 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?
  5. 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 ocurring …
  6. help

    Tritium (H-3) has a half-life of 12.3 years. How old is a bottle of olive oil if the tritium content is 25% that of a new sample of olive oil?
  7. 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 ?
  8. 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 ?
  9. 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 ?
  10. 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 ?

More Similar Questions