Video summaries: Buffer capacity

In the example given by the video, we can see that the buffer one’s pH went up very little but in buffer two it went almost to six; this tells us that buffer one has a higher buffer capacity, and to make a buffer that has a good buffer capacity you’ll want for your concentrations of A- and HA be between 0.10 M and 1 M and you won’t have to worry too much about how much acid or base you can use before your pH changes.