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18. Aqueous Equilibrium

Titrations: Weak Base-Strong Acid

18. Aqueous Equilibrium

Titrations: Weak Base-Strong Acid

Multiple Choice
A 20.00-mL sample of 0.150 M NH3 is being titrated with 0.200 M HCl. What is the pH after 15.00 mL of HCl has been added? Kb of NH3 = 1.8 × 10⁻⁵
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Multiple Choice
A solution contains 100.0 mL of 0.550 M sodium nitrite, NaNO₂. Find the pH after the addition of 180.0 mL of 0.400 M HClO₄. The K_a of HNO₂ is 4.6 × 10⁻⁴.
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Multiple Choice
A 20.00-mL sample of 0.150 M NH3 is being titrated with 0.200 M HCl. What is the pH after 25.00 mL of HCl has been added? Kb of NH3 = 1.8 × 10⁻⁵
Multiple Choice
What is the initial pH for the titration of 30.0 mL of 0.850 M NH₃ with 0.100 M HCl. K_b for NH₃ = 1.8 × 10⁻⁵.
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Multiple Choice
Pyridine, C5H5N, is a weak base with Kb = 1.5 x 10^-9. What is the pH at the equivalence point when 238 mL of 0.78 M pyridine is titrated with 0.78 M HCl?
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