AP Chemistry· difficulty 3/5
The titration curve of 25.0 mL of 0.10 M H₂A (diprotic) shows two equivalence points.
If the first equivalence is at 25.0 mL, what is the second equivalence volume?
75.0 mL
25.0 mL
50.0 mL
37.5 mL
Explanation
Each Hydrogen requires equal moles of NaOH. Second eq = 2 × first eq = 50.0 mL.
Want 10 more like this — adaptive to your weak spots?
pH of 0.10 M NH₃ (Kb = 1.8×10⁻⁵) ≈…
chevron_rightUsing the small-x approximation, what is [H+]?…
chevron_rightFor H3PO4, K{a1} = 7.5\times10^{-3}, K{a2} = 6.2\times10^{-8}, K{a3} = 4.8\times10^{-13}. The pH of 0.10 M H3PO4 is dominated by which dissociation?…
chevron_right