4 Part A How would you prepare an NaHCO3 - Na2CO3 (Kai (H2CO3) = 4.3-107, Ka2 (H2CO3) = 5.6 10-11) buffer solution that has pH=10.39? Express your answer using two significant figures. Make the Na2CO3 concentration O ΜΕ ΑΣΦ Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining ? times the concentration of NaHCO3. Provide Feedback

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