Phosphonic acid, H3PO3, is a diprotic acid that can be used to prepare buffers close to physiological pH. How would you prepare 250.0 mL of a pH of 6.8 buffer with a total [acid] + [base] of 0.150 M using the following chemicals? (You don't have to use all of the chemicals) :(H3PO3 K₁ = 0.050, K2 = 2.0 x 10-7) 216 g/mol Na₂HPO3 SH₂O 1.0 M NaOH 1.0 M HCI
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![Phosphonic acid, H3PO3, is a diprotic acid that can be used to prepare buffers
close to physiological pH. How would you prepare 250.0 mL of a pH of 6.8
buffer with a total [acid] + [base] of 0.150 M using the following chemicals?
(You don't have to use all of the chemicals) :(H3PO3 K₁ = 0.050, K2 = 2.0 x 10-7)
216 g/mol
Na₂HPO3 SH₂O
1.0 M NaOH
1.0 M HCI](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbdd53060-a704-4ff2-a8db-50bd6eeac3ee%2F8924afc0-abd0-4b46-ad15-23a6a5cda511%2Fajr0ex_processed.jpeg&w=3840&q=75)
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