u/0Nillionaire0

▲ 1 r/APChem

Help with significant figures? It is killing me

Hello, I am extremely confused on this and I don’t want to lose points from sig figs.

So for example if I have OH concentration of 3.09 times 10^-12, do I write the pH as 12.5, 12.49, or 12.490?

Also do we use the least amount of sig figs in the question or in our calculations??

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u/0Nillionaire0 — 7 days ago