a. Suppose you wanted to make a buer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If

a. Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final solution was 0.1 M in KH2PO4 , what concen-tration of Na2 HPO4 would you need
b. Now assume you wish to make a buffer at the same pH, using the same substances, but want the total phosphate molarity ([HPO4-2] + [H2PO4-]) to equal 0.3. What concentrations of the KH2PO4 and Na2HPO4 would be required?