The assigned buffer will be a 0.10 M, pH 6.70 buffer. The only available reagents are: 0.20 M NaH2PO4, 0.20 M Na2HPO4, 1.0 M HCl and 1.0 M NaOH Calculate the necessary amounts needed to prepare the assigned buffer. (pKa1=2.15, pКаa37.20, pКаз-12.68) Н,РОд (аq) H*(aq) + H,PO, (aq) pКа1-2.15 -2 НАРО (аq) H*(aq) + HPO4? (aq) pKa2=7.20 pКаз-12.68 НРО,? (аq) -2 -3 H*(aq) + HPO4* (aq)

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.