Choose a compound to make a buffer of ph=9

Reference no: EM13690063

Problem- Choose a compound to make a buffer of pH=9 and calculate the weight of the buffer needed to make 100ml of 0.1M solution.

a) Caps: pKa=10.4 MW=221.32

b) Tris: pKa=8.1 MW=121.14

c) Sodium phosphate: pKa 2.15/6.81/12.38 MW 119.98

Please answer only if you are 100% confident

Reference no: EM13690063

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