After my fiasco with carbon dioxide mineralization, I decided to spend a pretty penny on[1]. 

I am working on the problems of Chapter 1 which was a "review" in acids and bases. I learned how to calculate 10^-3.28 + 10^-3.55 - 10^-4.20 so that it equals 10^-3.13. This is important because concentration of acids and bases are presented as such. I spent about 1.5 hours on it. I was stumped. Then, it clicked. Simple. I have mild concrete thinking because of schizophrenia part of schizoaffective disorder (bipolar type).

I am also learning how to calculate the pH when, for example, NaOH and HCL are mixed in the same solutions. Later, it will take the thermodynamic properties of activity coefficient and fugacity coefficient into account. 

I figured I want to become a voice on climate technology so I will learn about CO2 chemistry. It is a fairly tough book, but the problems give the answers. I am using MatLab along with the book[1].

I am too old, too unprepared, and too ill to attend John Hopkins, but I got an invitation to apply to their outstanding chemical or biological engineering program as a master student. So, I must be doing something right on LinkedIn.

I also learned of Phreeqc for https://www.usgs.gov/software/phreeqc-version-3 for water chemistry. It is freely available and quite useful. One can use it to do non-ideal solution calculations because it is based on a database of data from a lot of research.

References: 

[1] Butler, J. N. (2019). Carbon Dioxide Equilibria and Their Applications. United States: CRC Press.

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