Explain following data and select the best buffer system

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Consider the following data and select the best buffer system below to make a buffer with a pH of 10.00.

Ka of H2CO3 = 4.2 x 10?7 ; Ka of HCO3? = 4.8 x 10?11 ; Kb of CO32? = 2.1 x 10?4

A. CO32?/HCO3?
B. CO32?/CO2
C. H2/CO2
D. CO32?/H2CO3
E. HCO3?/H2CO3

Reference no: EM13269668

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