Half Life


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Samantha Pacheco 2K
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Joined: Fri Sep 28, 2018 12:29 am

Half Life

Postby Samantha Pacheco 2K » Sat Mar 16, 2019 11:31 pm

Will the half life equations be given to us or will we have to derive them?

Chem_Mod
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Re: Half Life

Postby Chem_Mod » Sat Mar 16, 2019 11:34 pm

While the formula sheets vary from year to year, it's likely that if these half-life equations were on the most recent exam, they will be on the final exam formula sheet. :)

kateminden
Posts: 63
Joined: Fri Sep 28, 2018 12:24 am

Re: Half Life

Postby kateminden » Sun Mar 17, 2019 8:59 am

On the equation sheet on the website, the half-life formulas are given. However, the equation sheet does not specify which order reaction each equation is for, so make sure that you know the difference between the equations.

lukezhang2C
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Joined: Fri Sep 28, 2018 12:18 am

Re: Half Life

Postby lukezhang2C » Sun Mar 17, 2019 4:43 pm

Half life equations are given in the equation sheet, but they will not tell you which half-life equation corresponds to which order of reaction. You can also derive them using the standard half life equation, solving for t when the concentrations are half of the initial.

Sydney Tay 2B
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Joined: Fri Sep 28, 2018 12:20 am

Re: Half Life

Postby Sydney Tay 2B » Sun Mar 17, 2019 4:45 pm

The half life equations are on the equation sheet

Anmol_cheema_2F
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Joined: Fri Sep 28, 2018 12:26 am

Re: Half Life

Postby Anmol_cheema_2F » Sun Mar 17, 2019 5:17 pm

The half lives are provided on the formula sheet.

kristi le 2F
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Re: Half Life

Postby kristi le 2F » Sun Mar 08, 2020 6:37 pm

They will likely be on the formula sheet, but if you do need to derive the formula, plug in t=1/2 to get the half life formula.

Jessa Maheras 4F
Posts: 121
Joined: Fri Aug 02, 2019 12:16 am

Re: Half Life

Postby Jessa Maheras 4F » Wed Mar 11, 2020 7:08 pm

lukezhang2C wrote:Half life equations are given in the equation sheet, but they will not tell you which half-life equation corresponds to which order of reaction. You can also derive them using the standard half life equation, solving for t when the concentrations are half of the initial.


That’s really helpful, thank you!


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