Phosphoric acid is a triprotic acid with the p?apKa values p?a1=2.148pKa1=2.148,  p?a2=7.198 pKa2=7.198, and  p?a3=12.375 pKa3=12.375. You wish to prepare 1.000 L of a 0.05000.0500 M phosphate buffer at pH 7.6207.620. To do this, you choose to mix the two salt forms involved in the second ionization, NaH2PO4NaH2⁢PO4 and Na2HPO4Na2⁢HPO4, in a 1.000 L volumetric flask and add water to the mark. What mass of each salt will you add to the mixture?

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A: Structural formula of a compound shows the 3D arrangement of the molecule in space.

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A: This is a buffer solution so  pH = pKa + log ([salt]/[Acid])

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A:

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A: pH = pKa + log [salt]/[acid] Number of moles = molarity x volume (L)

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A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid

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A: pH + pOH = 14 pOH = pKb + log[salt]/[base] pKb = -logKb

Q: dont provide handwritiing solution ...

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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.