Refer to the reaction below for the Kb values and the possible species present in an oxalate buffer. a) Calculate for the Ka1 and the Ka2. Assume that the buffer will be prepared and stored at 25 ̊C. b) Compute the masses (in grams) of KHC2O4 and K2C2O4 needed to prepare 1.5 L of 275 mM KHC2O4-K2C2O4 buffer solution with a pH of 4.00. c) Describe the preparation of the buffer.
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Refer to the reaction below for the Kb values and the possible species present in an oxalate buffer.
a) Calculate for the Ka1 and the Ka2. Assume that the buffer will be prepared and stored at 25 ̊C.
b) Compute the masses (in grams) of KHC2O4 and K2C2O4 needed to prepare 1.5 L of 275 mM KHC2O4-K2C2O4 buffer solution with a pH of 4.00.
c) Describe the preparation of the buffer.
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