00:01
So often there are multiple mass balance equations you can write, and i'm not quite sure which mass balance equations they want us to write, but there are two of them that i will include in the answer to this problem.
00:15
If we have a 0 .1 molar aqueous solution of n .a .h .c .03, then one mass balance equation would be 0 .1 molar is easy.
00:31
To the sodium concentration because this will completely dissociate into 0 .1 moles per liter of sodium and 0 .1 moles per liter of hco3 minus.
00:44
However, that hco3 minus is going to react with water and create various forms of hco3 minus.
00:56
The total of all of its forms will be equal to the 0 .1 molar.
01:02
0 .1 molar will be equal to the concentration of h.
01:06
Co3 minus, which you will mostly have, but some of it will become h2, co3, and some of it will become co3 to minus, and will neglect the fact that this might dissociate and form carbon dioxide in water...