H-3 has a half life of 12.46 years. How long must a sample be stored so that 1/4 of original is left?
can you show the solution? please?
2007-02-20 23:44:31 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
12.46/2 = 6.23 years
2007-02-20 23:48:17 · answer #1 · answered by Anonymous · 1⤊ 0⤋
If the half-life is 12.46 years then after this time 1/2 is still left, you must wait another 12.46 years to have a 1/4 -:
12.46 years gives half, therefore 24.92 years would be the time taken to leave you with a 1/4
2007-02-20 23:50:05 · answer #2 · answered by Doctor Q 6 · 0⤊ 1⤋
12.46*4/4/4*2
2007-02-20 23:48:54 · answer #3 · answered by James Blond 4 · 0⤊ 1⤋
if you lose half tritium in 12.46 years, you lose a quarter in half that time. so 6.23 years
2007-02-20 23:50:53 · answer #4 · answered by scientific_boy3434 5 · 0⤊ 0⤋
y u think i no that. i'm only 93 years old. i no the game half life, but i can't answer this Q, unless of corse the answer is 6.23.
i'm really 13, but still, u get the point.
2007-02-20 23:50:27 · answer #5 · answered by Anonymous · 0⤊ 1⤋