Consider a the titration of 0.838 L of 0.766 M ascorbic acid ( ) with 1.93 M NaOH. What is the pH at the second equivalence point of the titration?
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Consider the titration of 2.5 M ascorbic acid (H2C6H8O6, Ka1 = 7.9e-5, Ka2 = 1.6e-12) with 2.0 M NaOH. What is the pH at the equivalence point of the titration?
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Consider the titration of 2.5 M ascorbic acid (H2C6H6O6, Ka1 = 7.9e-5, Ka2 = 1.6e-12) with 2.0 M NaOH. What is the pH at the second halfway point of the titration?
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A 0.552 -g sample of ascorbic acid (vitamin C) was dissolved in water to a total volume of 20.0 $\mathrm{mL}$ and titrated with 0.1103 $\mathrm{M}$ KOH. The equivalence point occurred at 28.42 $\mathrm{mL} .$ The pH of the solution at 10.0 $\mathrm{mL}$ of added base was $3.72 .$ From this data, determine the molar mass and $K_{\mathrm{a}}$ for vitamin $\mathrm{C}$ .
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