A certain solution has a hydrogen ion concentration of 0.000589 moles per liter. What is this number in scientific notation?

1 Answer
anor277
May 13, 2017

Well, it is #5.89xx10^-4*mol*L^-1#...

Explanation:

And in fact if you input the number (longhand) into your calculator, the calculator will probably convert it automatically.

We can extend this, and provide a definition of #pH#: #pH=-log_10[H_3O^+]=-log_10(5.89xx10^-4)=-(-3.23)=3.23#.

And we know that in aqueous solution #pH+pOH=14#. So what is #pOH#, and #[HO^-]# here?

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