Significant Figures w/ Acid and Base Calculations

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Noah Canio 3C
Posts: 55
Joined: Wed Sep 18, 2019 12:20 am

Significant Figures w/ Acid and Base Calculations

Postby Noah Canio 3C » Thu Dec 05, 2019 6:03 pm

Hello, I'm aware of the fact that when dealing with logarithms, your resulting answer will have a different amount of sig figs than normal.

Ex:

-log(0.00146) = 1.836 (There are three sig figs in this case since any value to the left of a decimal point from the solution to a logarithmic equation doesn't count as a significant figure.)

However, in the case that some logarithmic function displays something like this:

-log(x) = 0.0n (where n = some random constant and x = some random constant)

does the 0 to the right of the decimal point, 0.0n count as a significant figure?

Chem_Mod
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Re: Significant Figures w/ Acid and Base Calculations

Postby Chem_Mod » Thu Dec 05, 2019 6:10 pm

Leading zeroes are not significant.

Kaitlynn Tran 3F
Posts: 54
Joined: Wed Sep 18, 2019 12:20 am

Re: Significant Figures w/ Acid and Base Calculations

Postby Kaitlynn Tran 3F » Thu Dec 05, 2019 11:14 pm

Only the first number after the 0's would count as the first significant figure.


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