I want to know the bicarbonate change at different pH value, but I have no idea how to da as I am a new user. Can any people give details, I will appreciate very much?
I've installed the application and it appears that its interface is pretty intuitive meaning that the minute it's opened, the buttons on the screen visually indicate how to add the items you want. However, there are tutorials and guide created and published on the official website, therefore I recommend you check them.
Click on the first link labeled with #1 to download the brief tutorial file which gives all the info you need.