Asked by Anonymous
HCO2H(g) ¨ CO2(g) + H2(g) The half-life for the reaction at 550 ‹C is 24 seconds. How many seconds does it take for the formic acid concentration to decrease by 75%?
Answers
Answered by
bobpursley
.25=e^(-.692t/24)
take the ln of each side, solve for t. You need to do that calc for practice.
Now, the easy way with the numbers given.
In the first half life, you have .50 left
in the second half life, you have .25 left....which means .75 has been consumed.
two half lives...
take the ln of each side, solve for t. You need to do that calc for practice.
Now, the easy way with the numbers given.
In the first half life, you have .50 left
in the second half life, you have .25 left....which means .75 has been consumed.
two half lives...
Answered by
Kelly
If a movie has 0.16 hour remaining, how many seconds of movie remain?
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