Part 1: What is the pH of a solution of 1M HCO3 and 1M CO3?
Part 2: What is the pH if it was mixed with an equal volume of water?
Part 3: What is the pH if it was mixed with an equal volume of 0.001 M HCl?
Part 4: What is the pH if it was mixed with an equal volume of 0.001 M NaOH?
"What is the pH of a solution of 1M HCO3 and 1M co3?"
CO3(2-) is the "weak base".
Step 4: Look up the pKa of your weak acid.
This solution walks you through the answer to a type of "buffer" problem commonly found on chemistry, biology, and biochemistry exams and laboratory assignments. The solution is laid out in a step by step fashion and includes both a long answer and a time-saving short-cut that you can use when the buffer is to made at a a certain pH. After reading and trying this problem, you should be better able to understand buffer calculations, find pKa values, understand and use the Henderson-Hasselbach equation, and calculate the pH of buffers under different situations. Take the steps shown and apply them to a problem from your textbook or assignment.